Q28-35E - Organic Chemistry (Mcmurry)

Question

If the DNA coding sequence -CAA-CCG-GAT- were miscopied during replication and became -CGA-CCG-GAT-, what effect would there be on the sequence of the protein produced?

Step-by-Step Solution

Answer

The mutation is caused by a change or alteration in the DNA sequence.

Introduction to the Concept

Although DNA is double-stranded, only one strand is used as a transcription template at any given moment. The noncoding strand is the name given to this template strand. Because its sequence will be identical to that of the new RNA molecule, the nontemplate strand is referred to as the coding strand.

Solution Explanation

The DNA coding sequence was miscopied as -CAA-CCG-GAT were CGA-CCG-GAT- As a result, mutations will arise, and a mutation in a crucial gene may cause the cell to die if the protein transcribed by the mutant gene is dysfunctional, and some recombination events result in defining changes in the organism's metabolic capabilities.

A mutation is the result of a change in the DNA sequence.