RNA: Transcription & Processing

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

1. transcription, RNA polymerase

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

10. 64

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

2. ligase

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

3. C C U G A C U A A

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

4. transfer RNA

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

5. 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

6. A pairs with T, G 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

7. DNA

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

8. anticodon

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

9. lagging strand, ligase

The process of copying a gene's DNA sequence into a sequence of RNA is called A) replication. B) transcription. C) translation. D) PCR.

B) transcription.

The transcribing enzyme is A) ligase. B) DNA polymerase. C) RNA polymerase. D) amino-acyl transferase.

C) RNA polymerase.