DNA QUIZ 3

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1. RNA is synthesized on a DNA template in a process called ______, which utilizes the enzyme _______
translation, RNA polymerase
transcription, DNA polymerase
transcription, RNA polymerase
replication, DNA polymerase

2. Which of the following is NOT a necessary component of translation?
anticodon
mRNA
ligase
amino acid

3. Given the following DNA strand, which of the following is its complementary mRNA? G G A C T G A T T
C C T G A C T A A
C C U G A C U A A
G G A C T G A T T
T T A G T C A G G

4. Amino acids are joined together into a protein chain by which of the following?
transfer RNA
DNA polymerase
hydrogen bonds
messenger RNA

5. Proteins contain ____ different amino acids, whereas DNA and RNA are composed of ___ different nucleotides
20, 64
3, 20
4, 20
20, 4

6. The base pair rules states that:
Replication is semiconservative
A pairs with T, G pairs with C
DNA is a double helix held together by hydrogen bonds
A pairs with G, T pairs with C

7. Once transcription has been completed, which of the following is NOT necessary for protein synthesis to occur?
tRNA
ribosomes
mRNA
DNA

8. Which site of the tRNA molecule binds to the mRNA molecule?
anticodon
codon
amino acid
5 prime end

9. Okazaki fragments occur on the ___ and are bonded together by ______
leading strand, polymerase
mRNA, anticodons
lagging strand, ligase
tRNA, polymerase

10. How many different codons are possible?
3
20
64
an infinite number

Score =
Correct answers: