The genes on a chromosome were represented as ABCDEFGH. After chromosomal breakage the order was found to be ABCEFGH. Which type

Question

BartSMP [9]

3 years ago

15

The genes on a chromosome were represented as ABCDEFGH. After chromosomal breakage the order was found to be ABCEFGH. Which type

of change has occurred in chromosomal structure? a.Deletion b. Translocation c. Duplication

Biology

1 answer:

pychu [463] · Answer 1 · 2022-06-27T21:20:13+03:00

The answer is <span>a.Deletion.

Original gene: A B C D E F G H
New gene: A B C E F G H

As can be noticed, letter D is missing and that now there are only 7 letters instead of 8. In other words, a base or whole segment (depending on what the letters represent on DNA - bases or some random segments) is deleted. This change in chromosomal structure is obviously deletion.</span>