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Chapter 15: Q.27 (page 393)

Transcribe and translate the following DNA sequence (nontemplate strand): 5'-ATGGCCGGTTATTAAGCA-3'

Short Answer

Expert verified

The mRNA would be: 5' - AUGGCCGGUUAUUAAGCA - 3'

Step by step solution

01

Step1. Introduction

DNA translation is the term used to describe the process of protein synthesis by ribosomes in the cytoplasm or endoplasmic reticulum.

Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA).

02

Step2. Explanation

  1. The mRNA would be: 5' - AUGGCCGGUUAUUAAGCA - 3';
  2. AUG - Met, GCC - Ala, GGU - Gly, UAU - Tyr, UAA - Stop, GCA - Ala;
  3. The corresponding protein would be: MAGY;
  4. Although there are six codons, only four would be translated because the fifth codon is a stop codon. Therefore, sixth wouldn't be translated.

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Most popular questions from this chapter

Explain how single nucleotide changes can have vastly different effects on protein function.

Figure 15.16 Many antibiotics inhibit bacterial protein synthesis. For example, tetracycline blocks the A site on the bacterial ribosome, and chloramphenicol blocks peptidyl transfer. What specific effect would you expect each of these antibiotics to have on protein synthesis?

Tetracycline would directly affect:

a. tRNA binding to the ribosome

b. ribosome assembly

c. growth of the protein chain

Chloramphenicol would directly affect

a. tRNA binding to the ribosome

b. ribosome assembly

c. growth of the protein chain

A scientist splices a eukaryotic promoter in front of a bacterial gene and inserts the gene in a bacterial chromosome. Would you expect the bacteria to transcribe the gene?

Discuss how degeneracy of the genetic code makes cells more robust to mutations.

Many antibiotics inhibit bacterial protein synthesis. For example, tetracycline blocks the A site on the bacterial ribosome, and chloramphenicol blocks peptidyl transfer. What specific effect would you expect each of these antibiotics to have on protein synthesis?

Tetracycline would directly affect:

a. tRNA binding to the ribosome

b. ribosome assembly

c. growth of the protein chain

Chloramphenicol would directly affect

a. tRNA binding to the ribosome

b. ribosome assembly

c. growth of the protein chain
See all solutions

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