In Drosophila 16A region of X chromosome cause normal eye. If the region is repleated the eye produced is

A. Yellow

B. White

C. Barr

D. Normal

Answer: Option C

Solution(By Examveda Team)

In the Drosophila 16A region of the X, chromosome causes a normal eye. If the region is repeated the eye produced is Barr.
A Barr is an inactivated, condensed X chromosome found in female cells. Since females possess two X chromosomes and males have one X chromosome and Y chromosome, Barr bodies are essential to regulate the amount of X-linked gene product being transcribed.