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Chapter 14: Q. 36 (page 368)

What is the consequence of mutation of a mismatch repair enzyme? How will this affect the function of a gene?

Short Answer

Expert verified

Function of a gene may be affected or not be expressed.

Step by step solution

01

Step 1. Introduction

A mutation is a rare and random inheritable variation or alternation in the structure of genetic material in the genotype of an organism that is caused by some mutants.

02

Step 2. Explanation

The mismatch repair enzyme corrects the errors after replication is completed by removing the wrong nucleotide and adding the correct one. If there is any damage in the mismatch repair enzyme then it can create more permanent damage.

In the case of xeroderma pigmentosa, mutations are not repaired. In this gene function may be affected or it may not be expressed.

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Most popular questions from this chapter

Describe the structure and complementary base pairing of DNA

DNA replication is bidirectional and discontinuous; explain your understanding of those concepts.

If DNA of a particular species was analyzed and it was found that it contains 27 percent A, what would be the percentage of C?

a. 27 percent

b. 30 percent

c. 23 percent

d. 54 percent

If the sequence of the 5'-3' strand is AATGCTAC, then the complementary sequence has the following sequence: a. 3'-AATGCTAC-5' b. 3'-CATCGTAA-5' c. 3'-TTACGATG-5' d. 3'-GTAGCATT-5

Meselson and Stahl's experiments proved that DNA replicates by which mode? a. conservative b. semi-conservative c. dispersive d. none of the above
See all solutions

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