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DNA
DNA, transcription, translation, protein synthesis
23
Biology
10th Grade
05/30/2012

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Term
what are the building blocks of DNA?
Definition
nucleotide
Term
what are the three parts of a nucleotide?
Definition
phosphate, sugar, base
Term
what are the 4 bases? which bases pair together?
Definition
A: Adenine pairs with T: Thymine
C: Cytosine pairs with G: Guanine
Term
where is DNA found?
Definition
Nucleus
Term
is DNA a small or large molecule? Can it diffuse?
Definition
LARGE. NO
Term
arrange the following words from largest to smallest:

DNA, CELL, BODY, CHROMOSOME, GENE, NUCLEUS
Definition
BODY, CELL, NUCLEUS, CHROMOSOME, GENE, DNA
Term
What did watson and crick discover about DNA
Definition
it is a double helix
Term
what does DNA code for? Why is that important
Definition
DNA codes for PROTEINS that determine our TRAITS
Term
Where are proteins made?
Definition
ribosome
Term
mRNA
Definition
Messanger RNA. Brings DNA's instructions from nucleus to ribosome so proteins can be made
Term
transcription
Definition
rewrite DNA as mRNA
Term
Translation
Definition
mRNA translated into amino acides
Term
what do amino acids combine to form?
Definition
proteins!
Term
why does our DNA need to replicate?
Definition
so our cells can divide
Term
can the environment affect gene expression?
Definition
yes! for example when you go out in the sun your skin makes more of the protein melanin which makes you skin darker
Term
genetic engineering
Definition
take a gene from one organism and place it in another
Term
give an example of a hormone we can genetically engineer
Definition
INSULIN. We take the gene for human insulin and insert it into a PLASMID (DNA OF A BACTERIA)
Term
recombinant DNA
Definition
recombine DNA of two different organisms
Term
why do we use DNA fingerprints
Definition
everyone's DNA is unique
Term
restriction enzyme
Definition
cuts DNA
Term
Why does DNA run down a gel electrophoresis?
Definition
DNA is negative. We hook a battery up to the gel. The positive end is at the bottom and the negative side is at the top. The negative DNA is attracted to the positive side of the gel and runs down the gel
Term
gel electrophoresis
Definition
separates DNA according to size.
Term
RFLP patter
Definition
pattern observed on gel electrophoresis. unique to each individual. this is the DNA fingerprint.
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