Number of Barr bodies in XXXXY is

English

Gujarati

Hindi

4.Principles of Inheritance and Variation

normal

Number of Barr bodies in $XXXXY$ is

$1$

$2$

$3$

$4$

Solution

Barr body (sex chromatin) is the densely staining mass that represents an inactivated $X$ chromosomes found in nuclei of somatic cells of most female mammals. Number of Barr bodies is one less than the total $X$-chromosomes, therefore number of Barr bodies in $XXXXY =4-i 1=3$

Standard 12

Biology