A normal chromosome has the gene sequence A B C D E F G H I

A normal chromosome has the gene sequence A B C D E F G * H I which of the following represents a tandem duplication? A B C D D C B E F G * H I none of the Above A B C D E F D E F G * H I C D E F G * H I A B C D E F G * H B A B C D E

Solution

Answer:

ABCDEFDEFG.HI

Explanation:

The occurrence of two identical sequences, one following the other, in a chromosome segment is called tandem duplication.

ABCDEFDEFG.HI---Tandem duplication

ABCDDCBEFG.HI—Reverse tandem duplication.