Question

A genomatic mutation is the mutation involving

• A. Change in gene
• B. Change in chromosomal structure
• C. Change in the number of chromosomes
• D. All the above

Answer 1

Answer: (C)

Change in the number of chromosomes

Genomatic mutation is the change in the number of chromosomes from its original chromosome number. It can be classified as:

1) Aneuploidy: It is the presence of an abnormal number of chromosomes in a cell, for example, a human cell having 45 or 47 chromosomes instead of the usual 46.

2) Euploidy: It is the gain of one or more complete sets of chromosomes.

So, the correct answer is 'Change in the number of chromosomes'.