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Biology Lab Test 2
N/A
54
Biology
Undergraduate 2
12/02/2009

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Term
Chemical in cells known as the "blueprint of life"
Definition
DNA
Term
Sections of DNA that code for the production of proteins
Definition
genes
Term
type of nucleic acid that comes in at least 3 different forms and helps the protein contruction process
Definition
RNA
Term
Number of polynucleotide strants that are required to construct a DNA molecule
Definition
2
Term
Which of the components of a nucleotide come in four different forms in DNA?
Definition
nitrogenous base
Term
Name of the sugar in a DNA nucleotide
Definition
deoxyribose
Term
In DNA, the complement of adenine (A)
Definition
thymine (T)
Term
In DNA, the complement of guanine (G)
Definition
cytosine (C)
Term
the process of copying DNA
Definition
replication
Term
two types of chemicals that make up chromoso0mes
Definition
DNA and proteins
Term
Number of chromosomes typically found in most human cells
Definition
46
Term
a chemical that can cut DNA at specific sequences
Definition
restriction enzyme
Term
DNA that seems to code for no genetic information
Definition
"junk" DNA
Term
pieces of DNA that result from being cut by special chemicals at specific locations
Definition
restriction fragments
Term
the process of separating DNA fragments using an electrical current
Definition
electrophoresis
Term
a specific sequence of DNA bases at which DNA may be recognized and cut by special chemicals
Definition
restriction site
Term
type of human cells that can serve as a source of DNA for DNA fingerprinting
Definition
sperm, cheek, blood cells
Term
Mitosis results in daughter cells that are/are not genetically identical to the parent cell
Definition
are
Term
the "Father of Genetics"
Definition
Gregor Mendel
Term
the genetic makeup of an organism
Definition
genotype
Term
the physical appearance of an organism based on its genetic makeup
Definition
phenotype
Term
genetic makeup consists of two of the same allele
Definition
homozygous
Term
genetic makeup consists of two different alleles
Definition
heterozygous
Term
in a heterozygote, this allele masks the presence of another one
Definition
dominant allele
Term
According to Mendel's rules of inheritance, how many alleles for each characterisitc are contained in each sperm cell?
Definition
1
Term
number of homologous pars of chromosomes that human cells have
Definition
23
Term
Do homologous pairs have genetic information for the same characteristics?
Definition
yes
Term
Are homologous chromosomes genetically identical>
Definition
No
Term
Do you get both chromosomes in a homologous pair from the same parent?
Definition
No
Term
Cellular process that results in the production of egg and sperm with one chromosome from each homologous pair
Definition
meiosis
Term
process in which an egg and sperm join together to create a cell with homologous pairs of chromosomes
Definition
fertilization
Term
cells that have one chromosome from each homologous pair
Definition
haploid
Term
cells that have homologous pairs of chromosomes
Definition
diploid
Term
types of cells in the hyman body that are haploid
Definition
egg and sperm
Term
For something to be considered an organic macromolecule, what chemical element must be found in it?
Definition
carbon
Term
term for a small chemical that acts as a building block for a larger chemical
Definition
monomer
Term
which is smaller? monosaccharide or polysaccharide?
Definition
monosaccharide
Term
which is smaller? gluclose or starch?
Definition
gluclose
Term
which is smaller? amino acids or proteins?
Definition
amino acids
Term
when 2 monomers are bonded together to build a polymer, what substance important for life gets formed in the process?
Definition
water
Term
Initial color: clear
After benedicts: bright orange red
positive or negative?
Definition
positive
Term
Initial color: clear
Color after benedicts: bright orange red
Positive benedicts test
Does the unknown substance contain reducing sugars?
Definition
yes
Term
initial color: clear
color after the iodine: yellow
Positive or negative?
Definition
negative
Term
Color before test: clear
After iodine: yellow
Negative test
Contain starch>
Definition
no
Term
Initial color: clear
After biuret was added: purple
Positive or negative?
Definition
positive
Term
Initial color: clear
After biurets test: purple
Positive test
contain protein?
Definition
yes
Term
Organ system in your body responsible for breaking down the large food items you eat into smaller chemicals that your cells can directly use
Definition
digestive
Term
where in your body does the breakdown of food begin?
Definition
mouth
Term
the chemical digestion of food requires what specialized chemicals?
Definition
digestive enzymes
Term
what is the scientific term for the specific molecule that is acted upon by an enzyme?
Definition
substrate
Term
what is the scientific term for the specific location on an enzyme where a chemical reaction takes place?
Definition
active site
Term
what is the scientific term for the chemicals that result from a chemical reaction mediated by an enzyme?
Definition
product
Term
what is the substrate of the enzyme amylase?
Definition
starch
Term
what product results from the action of amylase on its substrate?
Definition
maltose
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