Term
What is Gregor Mendel known for? |
|
Definition
Basic laws of inheritance |
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|
Term
What is Frederick Miescher known for? |
|
Definition
Isolated Nuclein composition: acidic and basic |
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|
Term
What is Frederick Griffith known for? |
|
Definition
Transformation experiment: Transformed non-pathogenic pneumonia into pathogenic pneumo |
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|
Term
What did the Transformation experiment focus on? |
|
Definition
S strain - encapsulated; highly pathogenic R strain - unencapsulated; nonpathogenic Dead mice vs. Living mice |
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|
Term
What are Avery, MacLeod, and McCarty known for? |
|
Definition
Determined transforming substance: Deoxyribonucleic acid (DNA) |
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|
Term
What did Avery, MacLeod, and McCarty's results confirm? |
|
Definition
DNA is destroyed by DNAse DNA is unaffected by proteolytic enzymes |
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Term
|
Definition
Adenine Guanine Thymine Cytosine Deoxyribose Phosphate |
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Term
|
Definition
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|
Term
|
Definition
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Term
|
Definition
Base composition of DNA varies w/species DNA from diff. tissues from same spec is the same DNA bases do not change with age, nutrition, or environment In all DNAs, A=T, G=C |
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|
Term
What are Rosalind Franklin and Maurice Wilkins known for? |
|
Definition
X-ray diffraction studies |
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|
Term
What are James Watson and Francis Crick known for? |
|
Definition
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|
Term
What are the key aspects of the 3-D model proposed and accepted by science of DNA? |
|
Definition
Double Stranded Double Helix Hydrophilic backbone of deoxyribose & phosphate DNA strands not identical but complementary |
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Term
|
Definition
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Term
|
Definition
Stores genetic information |
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Term
|
Definition
Found in nucleus (most) & mitochondria (some) |
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Term
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Definition
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|
Term
How many types of RNA are there? |
|
Definition
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|
Term
True or False: The 3 types of RNA that we looked at in lecture are each involved in translating DNA sequence into protein |
|
Definition
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Term
|
Definition
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|
Term
Is RNA Single Stranded or Double Stranded (Usually)? |
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Definition
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|
Term
Is DNA Single Stranded or Double Stranded (Usually)? |
|
Definition
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|
Term
How many Nucleotide polymers does DNA have? |
|
Definition
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|
Term
How many Nucleotide polymers does RNA have? |
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Definition
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|
Term
Is Uracil a Purine or Pyrimidine? |
|
Definition
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|
Term
What type of sugar defines nucleic acid type? |
|
Definition
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|
Term
What is at Position 2' of Ribose? |
|
Definition
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|
Term
What is at Position 2' of Deoxyribose? |
|
Definition
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|
Term
|
Definition
Sugar + Purine or Pyrimidine |
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|
Term
What is the nucleoside of Adenosine? |
|
Definition
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|
Term
What is the nucleoside of Cytidine? |
|
Definition
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|
Term
What is the nucleoside of Guanosine? |
|
Definition
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|
Term
What is the nucleoside of Uridine? |
|
Definition
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|
Term
|
Definition
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|
Term
RNA: Adenylate's nucleotide becomes what? |
|
Definition
adenosine-5'-monophosphate |
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|
Term
What does the Phosphate group from 1 nucleotide connect to from another nucleotide? |
|
Definition
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|
Term
What does the sugar group from 1 nucleotide connect to from another nucleotide? |
|
Definition
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|
Term
Where does the 5' phosphate group bind to sugar on next nucleotide? |
|
Definition
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|
Term
End of strand with free phosphate end called ____ end |
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Definition
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|
Term
End of strand with hydroxyl group is ____ end |
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Definition
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|
Term
Nucleotide sequence is ALWAYS written or read in a _____ manner using base abbreviations |
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Definition
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|
Term
G-C has how many hydrogen bonds? |
|
Definition
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|
Term
A-T has how many hydrogen bonds? |
|
Definition
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|
Term
The phosphate-deoxyribose backbones are the _____ of the ladder |
|
Definition
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|
Term
The Nitrogen bases hydrogen bonded to each other are the ______ of the ladder |
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Definition
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|
Term
Are the 2 strands of DNA parallel or antiparallel? |
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Definition
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|
Term
What is the sequence for the other strand of the following: 5'-ACTCCGA-3' |
|
Definition
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|
Term
What would the sequence for the other strand of the following appear "in nature": 5'-ACTCCGA-3'? |
|
Definition
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|
Term
The two complementary strands ____ or ____ to each other through hydrogen bonds between the bases |
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Definition
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|
Term
True or False: Each DNA strand has the potential to deliver and code for information |
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Definition
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|
Term
What is the length of DNA given in terms of? |
|
Definition
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|
Term
What are the 3 types of RNA that we covered in lecture? |
|
Definition
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|
Term
|
Definition
Copy of DNA code for making protein |
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|
Term
|
Definition
Part of ribosomal machinery (used to make protein) |
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Term
|
Definition
Carries Amino Acids to Ribosome where Protein is Formed |
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|
Term
True or False: RNA is easily degraded and is referred to as transient |
|
Definition
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|
Term
In vivo, ____ degrades and forms uracil; leading to a DNA mutation |
|
Definition
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|
Term
True or False: Any uracil found in DNA is corrected by "proofreading" system |
|
Definition
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|
Term
|
Definition
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|
Term
|
Definition
Entire set of DNA that makes up a particular organism |
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|
Term
Organism's genome contains ______ sequence information necessary for making the proteins that produce a complete organism |
|
Definition
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|
Term
Almost all genome located in nucleus EXCEPT tiny piece located in ______ |
|
Definition
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|
Term
energy-producing organelles |
|
Definition
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|
Term
Each ______ cell contains a complete copy of genome |
|
Definition
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|
Term
Germ cells have ______ genome |
|
Definition
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|
Term
Human genome ________ bp of DNA |
|
Definition
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|
Term
In the Human Genome _____%: Genes encode for protein |
|
Definition
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|
Term
In the Human Genome _____%: Noncoding sequences between and within genes |
|
Definition
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|
Term
In the Human Genome, ______ bp make up the Mitochondrial DNA |
|
Definition
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|
Term
How many Mitochondrial genes in the Human Genome code for energy production proteins? |
|
Definition
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|
Term
|
Definition
Dispersed form in nondividing cells |
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|
Term
What does Chromatin consist of? |
|
Definition
Proteins (histone & non-histone) + DNA |
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|
Term
|
Definition
Nucleic acid molecule coding for genetic info |
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|
Term
Human genome stretched out _______ long |
|
Definition
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|
Term
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Definition
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|
Term
|
Definition
DNA wrapped around histones (protein) |
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Term
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Definition
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|
Term
Human Chromosome has _____ total alleles |
|
Definition
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|
Term
How many human chromosomes are Somatic? |
|
Definition
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|
Term
How many human chromosomes are sex chromosomes? |
|
Definition
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|
Term
|
Definition
Any one of a number of different forms of the same gene at a given locus (position) on a chromosome |
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|
Term
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Definition
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|
Term
|
Definition
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|
Term
|
Definition
Set of alleles inherited by an individual |
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|
Term
|
Definition
Observable effect of the genotype |
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|
Term
5 Reasons for extracting nucleic acids |
|
Definition
Genetic Testing Cancer characterization Human identity testing - paternity Human identity testing - forensics Infectious organisms |
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|
Term
Name a few specimens consistent with Nucleic acid extraction and quantification |
|
Definition
Blood Urine Semen Buccal swab Tissues Cultured MOs |
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|
Term
What is the stability of DNA? |
|
Definition
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|
Term
DNA is in what kind of strands? |
|
Definition
Long, thin strands, which may break (shearing) |
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|
Term
True or False: You should avoid excessive & rough pipeting and vortexing to avoid sheering DNA |
|
Definition
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|
Term
What is the most common RNA target in nucleic acid extraction? |
|
Definition
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|
Term
|
Definition
Small, unstable, easily degraded |
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|
Term
Are the following DNA or RNA viruses? HIV HCV |
|
Definition
HIV & HCV are RNA Viruses |
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|
Term
What kind of genes produce mRNA? |
|
Definition
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|
Term
True or False: You should use Universal Precautions when doing nucleic acid extraction |
|
Definition
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|
Term
Use ____ _____ ____ when performing nucleic acid extraction to prevent contamination of pipettes (which can contaminate samples) |
|
Definition
Aerosol Resistant Tips (ART) |
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|
Term
True or False: Small mistakes can lead to big consequences since working with small samples |
|
Definition
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|
Term
|
Definition
Short bursts of centrifuge reaching full speed |
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|
Term
What can over vortexing lead to? |
|
Definition
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|
Term
3 Basic steps in nucleic acid extraction |
|
Definition
Cell lysis Digest proteins Purify DNA |
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|
Term
DNA Extraction Protocol Liquid Phase |
|
Definition
*Cell lysate added to solvents w/ different solubility constants *DNA present in one layer *DNA layer separated, precipitated out, then rehydrated |
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|
Term
DNA Extraction Protocol Solid Phase |
|
Definition
*Cells lysed & treated w/ proteinases *DNA precipitated by + OH *DNA resuspended & + to column with silica *Centrifuge *DNA attaches to column *Column rinsed with buffer *DNA eluted from column w/ diff buffer *Purified DNA in bottom of tube |
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|
Term
True or False: DNA bind irreversibly to silica depending on pH |
|
Definition
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|
Term
True or False: DNA Extraction Solid-Phase protocol is fast, safe, and yields very clean DNA |
|
Definition
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|
Term
True or False: Some RNA may also be extracted with the DNA extraction solid-phase protocol |
|
Definition
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|
Term
What can you add to the solid phase DNA extraction protocol to remove RNA? |
|
Definition
|
|
Term
What is the Average yield of solid phase DNA extraction protocol? |
|
Definition
6 micrograms from 200 microliters whole human blood |
|
|
Term
What is the size of the yield in DNA extraction solid-phase protocol |
|
Definition
|
|
Term
Should you avoid multiple free-thaw cycles? |
|
Definition
|
|
Term
RNA Extraction Process _____ specimens promptly |
|
Definition
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|
Term
RNA Extraction Place RNA in special _____ |
|
Definition
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|
Term
RNA Extraction ________ in liquid nitrogen |
|
Definition
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|
Term
RNases _______ (hands, water, equipment, everywhere) |
|
Definition
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|
Term
What kind of components do you need for RNA Extraction? |
|
Definition
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|
Term
What should you use to remove DNA which can interfere with test results? |
|
Definition
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|
Term
Should you wear gloves while performing RNA Extraction? |
|
Definition
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|
Term
Nucleic acids absorb UV light at _________ nM |
|
Definition
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|
Term
Proteins absorb UV at _____ nM |
|
Definition
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|
Term
Ratio of ___ to _____: Very clean nucleic acid preparation |
|
Definition
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|
Term
Ratio of ____ to ______: Acceptable for some tests (PCR) but not others (sequencing) |
|
Definition
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|
Term
Ratio of _____: Not acceptable |
|
Definition
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|
Term
Acceptable ratio is for what kind of tests? |
|
Definition
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|
Term
What kind of tests does Ratio of 1.6 to 1.8 not work with? |
|
Definition
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|
Term
1.0 OD unit at A260 = _____ micrograms/mL double stranded DNA |
|
Definition
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|
Term
1.0 OD260 unit = ______ micrograms/mL RNA |
|
Definition
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|
Term
A DNA sample gives the following results: Total volume = 100 microliters Specimen diluted 1:5 Diluted specimen OD260 = 0.5 units Diluted specimen OD280 = 0.300 units What is the purity calculation? |
|
Definition
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|
Term
How do you determine purity calculation? |
|
Definition
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|
Term
A DNA sample gives the following results: Total volume = 100 microliters Specimen diluted 1:5 Diluted specimen OD260 = 0.5 units Diluted specimen OD280 = 0.300 units What is the Yield calculation? |
|
Definition
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|
Term
A DNA sample gives the following results: Total volume = 100 microliters Specimen diluted 1:5 Diluted specimen OD260 = 0.5 units Diluted specimen OD280 = 0.300 units How do you determine the Yield? |
|
Definition
0.5 x 50 = 25 micrograms/milliliter 25 x 5 = 125 micrograms/milliliter 125 / 1000 = 0.125 micrograms/microliter Multiply by the total volume |
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|
Term
|
Definition
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|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
Who proposed Replication, Transcription, and Translation? |
|
Definition
|
|
Term
What is the Revised Central Dogma of Molecular Biology? |
|
Definition
Retroviruses transcribe RNA into DNA with Reverse Transcriptase |
|
|
Term
True or False: Reverse Transcriptase is an enzyme |
|
Definition
|
|
Term
|
Definition
Process to make replica or identical copy of genomic DNA |
|
|
Term
Is DNA replication semi-conservative? |
|
Definition
|
|
Term
|
Definition
After replication each double strand of DNA composed of 1 "new" and 1 "parent" DNA strand |
|
|
Term
What assures that DNA is copied exactly in DNA Replication? |
|
Definition
|
|
Term
DNA Replication ENZYMES in sequential order |
|
Definition
Helicase Topoisomerase Primase DNA polymerase III |
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|
Term
|
Definition
Unwinds and Separates DNA double strand |
|
|
Term
True or False: Special proteins prevent rejoining of double strands during DNA Replication |
|
Definition
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|
Term
|
Definition
Reduces supercoiling which occurs during unwinding |
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|
Term
|
Definition
|
|
Term
|
Definition
Adds appropriate nucleotide to 3' end of new DNA strand |
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|
Term
What does DNA polymerase require to do its job? |
|
Definition
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|
Term
|
Definition
|
|
Term
|
Definition
Complementary to DNA template |
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|
Term
Newly synthesized DNA strands are _____ to parent strand |
|
Definition
|
|
Term
|
Definition
Replicated continuously from 3' end of the parent strand (template) with the newest end of the forming strand facing into the replication fork |
|
|
Term
What is the direction of strand formation? |
|
Definition
|
|
Term
|
Definition
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|
Term
DNA polymerase replicates DNA only in ____ to _____ direction |
|
Definition
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|
Term
What are the pieces of the Lagging strand called? |
|
Definition
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|
Term
With the Okazaki fragments the 5' to 3' synthesis occurs in direction ______ to fork movement |
|
Definition
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|
Term
Each Okazaki fragment has its own ____ ____ formed by primer |
|
Definition
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|
Term
After Okazaki fragment complete, __________ removes RNA primer and replaces it with DNA |
|
Definition
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|
Term
|
Definition
Links the Okazaki fragments |
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|
Term
True or False: Replication occurs at multiple sites on chromosome at the same time |
|
Definition
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|
Term
RNA Synthesis - Transcription |
|
Definition
DNA information transferred to a newly assembled piece of RNA |
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|
Term
What is the first step in RNA synthesis |
|
Definition
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|
Term
Does RNA polymerase reads only 1 strand? |
|
Definition
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|
Term
In which direction is RNA synthesized? |
|
Definition
|
|
Term
What is the sugar in RNA? |
|
Definition
|
|
Term
|
Definition
|
|
Term
Where does mRNA, copy of the "non template" DNA strand, travel to in order to be read to form protein? |
|
Definition
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|
Term
Where is the location of the following: RNA polymerase I |
|
Definition
|
|
Term
Where is the location of the following: RNA polymerase II |
|
Definition
|
|
Term
Where is the location of the following: RNA polymerase III |
|
Definition
|
|
Term
Where is the location of the following: mt RNA polymerase |
|
Definition
|
|
Term
What is the product of the following: RNA polymerase I |
|
Definition
|
|
Term
What is the product of the following: RNA polymerase II |
|
Definition
|
|
Term
What is the product of the following: RNA polymerase III |
|
Definition
|
|
Term
What is the product of the following: mt RNA polymerase |
|
Definition
|
|
Term
What does the following stand for: mtRNA |
|
Definition
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|
Term
What does the following stand for: mRNA |
|
Definition
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|
Term
What does the following stand for: rRNA |
|
Definition
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|
Term
What does the following stand for: tRNA |
|
Definition
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|
Term
What 2 type of cells are RNA polymerases? |
|
Definition
|
|
Term
What type of cells are the enzymes RNA polymerase I-III and mt RNA polymerase? |
|
Definition
|
|
Term
|
Definition
DNA regions that signal RNA polymerase starting point |
|
|
Term
True or False: Factors (proteins) help RNA polymerase recognize promoter |
|
Definition
|
|
Term
In the Initiation step of Transcription what size section of the DNA helix unwinds? |
|
Definition
|
|
Term
What happens during the Elongation step of Transcription? |
|
Definition
RNA polymerase moves along DNA Synthesizes RNA 5' to 3' |
|
|
Term
What happens during Termination step of Transcription |
|
Definition
Terminator sequence: Stop RNA polymerase Termination factors (proteins) |
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|
Term
What are the 3 steps of Transcription? |
|
Definition
Initiation Elongation Termination |
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|
Term
Where does Post-transcriptional processing take place? |
|
Definition
|
|
Term
|
Definition
RNA first transcribed from DNA |
|
|
Term
What does the pre-mRNA contain? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
What happens during RNA splicing? |
|
Definition
Noncoding introns are removed from pre-mRNA |
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|
Term
What is RNA splicing done by? |
|
Definition
Spliceosomes (special enzymes) |
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|
Term
True or False: Introns vary in size and sequence among individuals |
|
Definition
|
|
Term
True or False: Exons vary in size and sequence among individuals |
|
Definition
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|
Term
True or False: Intron variations are used in DNA fingerprinting |
|
Definition
|
|
Term
True or False: Intron variations are not used in gene function |
|
Definition
|
|
Term
mRNA additional processing: 5' Cap |
|
Definition
Special modified nucleotide added to 5' end |
|
|
Term
|
Definition
|
|
Term
mRNA additional processing: Poly(A) tail |
|
Definition
Added to 3' end; can be used to help isolate mRNA |
|
|
Term
What occurs with the Poly(A)tail in mRNA additional processing? |
|
Definition
*poly(T)s attached to column in solid phase extraction protocol *Poly(A)tail hybridizes to Poly T and mRNA attaches to column |
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|
Term
True or False: The number of As in Poly(A)tail varies |
|
Definition
|
|
Term
|
Definition
Synthesis of protein using mRNA as template |
|
|
Term
mRNA transported to _____ for protein synthesis |
|
Definition
|
|
Term
Linear sequence of amino acids joined by ______ bonds |
|
Definition
|
|
Term
How many Amino Acids are used to make proteins? |
|
Definition
|
|
Term
Which end has the Amino terminus? |
|
Definition
|
|
Term
Which end has the Carboxy terminus? |
|
Definition
|
|
Term
What is another name for Codon? |
|
Definition
|
|
Term
Codon: ____ nucleotides encode for 1 amino acid |
|
Definition
|
|
Term
If there are 62 codons, how many nucleotides are in the triplet code? |
|
Definition
|
|
Term
True or False: The Genetic code is redundant |
|
Definition
|
|
Term
What is another word for redundant? |
|
Definition
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|
Term
True or False: An amino acid may be encoded by more than 1 codone |
|
Definition
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|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
True or False: ALL proteins start with Methionine |
|
Definition
|
|
Term
What are the STOP Codons? |
|
Definition
|
|
Term
|
Definition
|
|
Term
True or False: Mutations or errors in genomic DNA carry through to mRNA and may change protein composition (depending on the error) |
|
Definition
|
|
Term
Do mutations or errors in genomic DNA Always change protein composition? |
|
Definition
|
|
Term
What is the following an example of? 5'UUUAUGGUACUUAAAGGCCCCUAUUAGGGG-3' |
|
Definition
|
|
Term
What is the following an example of? 5' UUU AUG GUA CUU AAA GGC CCC UAU UAG GGG 3' |
|
Definition
|
|
Term
What is the following an example of? 5' Met Val Leu Lys Gly Pro Tyr Stop |
|
Definition
|
|
Term
True or False: The Genome is the entire set of genes |
|
Definition
|
|
Term
What is the role of tRNA in translation? |
|
Definition
Carries amino acids to ribosome to be added to polypeptide |
|
|
Term
True or False: Each tRNA molecule is specific for only 1 amino acid |
|
Definition
|
|
Term
True or False: Each tRNA molecule is specific for 1 specific mRNA codon |
|
Definition
|
|
Term
tRNA ______ is complementary to mRNA codon |
|
Definition
|
|
Term
Codon for Phe in mRNA: UUC Anticodon of tRNA for Phe is _____ |
|
Definition
|
|
Term
|
Definition
Multiple ribosomes on a strand of mRNA |
|
|
Term
Ribosomal enzyme catalyzes formation of _____ bond |
|
Definition
|
|
Term
True or False: The appropriate tRNA base pairs with codon |
|
Definition
|
|
Term
Codons on mRNA are "read" by _______ |
|
Definition
|
|
Term
Ribosome binds to _____ at initiation site to form initiation complex |
|
Definition
|
|
Term
Where can you find the Protein-ribosomal RNA complex? |
|
Definition
|
|
Term
How fast is the helicase unwinding the double helix? |
|
Definition
|
|
Term
What are the 2 reagents in the lysis solution |
|
Definition
|
|
Term
What does the Detergent do in the lysis solution? |
|
Definition
Dirupts cell membrane & Nuclear envelope causing cell to burst open and release DNA |
|
|
Term
What does the Proteinase K do in the lysis solution? |
|
Definition
Cuts apart the histones to free DNA |
|
|
Term
What is the purpose of the concentrated salt solution? |
|
Definition
Cause proteins and other cellular debris to clump together |
|
|
Term
What is the purpose of adding isopropyl alcohol to the DNA suspension |
|
Definition
Causes DNA to clump out of solution and can be seen with the naked eye |
|
|
Term
How can DNA be stored for many years? |
|
Definition
|
|
Term
The number of histones in a nucleosome is: |
|
Definition
|
|
Term
The number of nucleosomes in chromatin is: |
|
Definition
|
|
Term
The number of nuclei that can fit onto the tip of a needle is |
|
Definition
|
|
Term
Name the reasons for isolating DNA |
|
Definition
Genetic Testing Body identification Analysis of forensic evidence |
|
|
Term
True or False: The four DNA purification steps are collect cheek cells, burst cells to release DNA, separate DNA from protein and debris, and isolate concentrated DNA. |
|
Definition
|
|
Term
True or False: The purpose of the salt solution is to cause proteins and the DNA to clump together |
|
Definition
|
|
Term
Name the purpose of adding isopropyl alcohol to the DNA suspension |
|
Definition
DNA will come out of solution |
|
|
Term
What project did Maurice Wilkins work on before his DNA studies? |
|
Definition
|
|
Term
Name the scientist who played a key role in developing the X-ray diffraction technique |
|
Definition
|
|
Term
In what country did Watson, Crick , Wilkins, and Franklin do their work on DNA? |
|
Definition
|
|
Term
Who made the X-ray diffraction images which provided key DNA information? |
|
Definition
|
|
Term
What is the most likely reason Rosalind Franklin was not awarded the Noble Prize? |
|
Definition
She died and the Noble Prize is only given to living people |
|
|
Term
What was James Watson's approximate age when he and Frances Crick determined the structure of DNA? |
|
Definition
|
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Term
Did Waston and Crick spend long hours in the lab gathering data for determining DNA structure? |
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Select all of the scientists who recieved the Noble Prize for determinig DNA structure |
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Which enzyme joins DNA fragments together by reforming the sugar-phosphate bonds of DNA? |
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What is the name of the process used to transfer DNA into bacteria. |
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