Reference no: EM132956014

1. Why is there no deoxyribose in RNA?

2. Why do eukaryotic cells make proteins using mRNA rather than making proteins directly from DNA?

3. What are the evolutionary reasons for using RNA as an intermediate in the process of protein synthesis?

4 Which of the following options is correct?

The majority of transcription in eukaryotic cells is accounted for by

a. the synthesis of pre-tRNA by RNA Pol Ill.

b. the synthesis of pre-mRNA by RNA Pol Il.

c. the synthesis of pre-rRNA by RNA Pol Ill.

d. the synthesis of pre-rRNA by RNA Pol I.

e. the synthesis of pre-tRNA by RNA Pol I.

5 Three different eukaryotic RNA polymerases are required to synthesize messenger RNA molecules, and translate them into proteins. Which two types of eukaryotic RNA polymerase are required to make the ribosomal RNA components of the ribosome?

6 Three different eukaryotic RNA polymerases are required to synthesize messenger RNA molecules, and translate them into proteins. Which type of eukaryotic RNA polymerase is required to synthesize the transcripts that will become messenger RNA molecules?

7. What does mRNA do in protein synthesis? What does tRNA do?