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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

Which feature of promoters can be found in both prokaryotes and eukaryotes?

a. GC box

b. TATA box

c. octamer box

d. -10 and -35 sequences

15. A scientist identifies a pre-mRNA with the following structure.

What is the predicted size of the corresponding mature mRNA in base pairs (bp), excluding the 5鈥� cap and 3鈥� polyA tail?

a. 220bp

b. 295bp

c. 140bp

d. 435bp

Three different bacteria species have the following consensus sequences upstream of a conserved gene.

Table 15.2 Order the bacteria from most to least efficient initiation of gene transcription. a. A > B > C b. B > C > A c. C > B > A d. A > C > B

How many nucleotides are in 12 mRNA codons?

a. 12

b. 24

c. 36

d. 48

The -10 and -35 regions of prokaryotic promoters are called consensus sequences because ________.

a. they are identical in all bacterial species b. they are similar in all bacterial species

c. they exist in all organisms

d. they have the same function in all organisms
See all solutions

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