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DNA Structure
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Where does Translation occur?
In
Ribosomes
What is the role of tRNA?
To get the Amino Acids.
What does the start codon ALWAYS code for?
Methanine
How many possible combosof amino acids are there?
64
How many amino acids are there?
20
What are the building block of DNA?
5 carbon sugar
phosphate group
nitrogous base
During transcription DNA is changed into what molecule?
mRNA
name the 3 letters?
tRNA
mRNA
Whata re the 3 types of mutations?
Deletion
Duplication
Substitution
What are the 2 frameshift mutations?
Deletion & Duplication
Where does DNA replication occur?
Nucleus
Difference between DNA & RNA?
DNA
RNA
* 2 strands
* Ribonucleic Acid
* Thymine
* Uracil
* Stays in nucleus
* Moves out of nucleus
Copy of DNA that is smaller and able to leave the nucleus?
mRNA
Principal enzyme that is involved in transcription?
RNa Polymerce
Where transcription occurs?
Nucleus
What does DNA Polymerce do?
It replicates DNA
DNA is coped before what process?
Mitosis
Where is DNA located?
Nucleus
Is DNa small enough to leave the cell?
Nope
what is another name for the double helix?
"Twisted Ladder"
What are the 2 parts of DNA?
Intron
&
Exron
What is important about intron?
It is important because
It
lessens
the chance of mutations.
What is it valled when there is an ability to turn genes on and off?
Gene Regulation
DNa is a polymer of these molymers?
Nucletide
What is another name for proteins?
Polypeptide chain
What does translation produce?
Proteins.
What are the building blocks of proteins?
Amino Acids
What do codons bind to?
A 3 letter sequence of RNA
What do anti codons bind to?
They bind to codons.
In DNA if you know one sind of the molecule, then you know the other. What is this called?
Complementary
What does helicase do?
It is an enzyme that "unzips" the original DNA
What does DNA Polymerace do?
It is the enzyme that adds new complementary base nucleotides to the open bases. the "glue
Transcription
DNA info to mRNA
Translation
mRNA determines the protein
Author
shelbyrenee
ID
9940
Card Set
DNA Structure
Description
DNA/RNA
Updated
2010-03-15T19:22:46Z
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