3
Question
Number of Barr body in XXXX female is
Number of Barr body in XXXX female is
Open in App
Solution
The correct option is C 3
Females have two X chromosomes and males have one X chromosome and one Y chromosome. One X chromosome contains essential genes. The other X chromosome of the female is inactivated during embryonic development. Barr body is an inactive X chromosome present in a female cell. The number of Barr body is one less than the number of X-chromosomes. In the given example, there are total 4 X chromosomes. Hence, the number of Barr bodies are 4 - 1 = 3.Thus, the correct answer is option C.
Females have two X chromosomes and males have one X chromosome and one Y chromosome. One X chromosome contains essential genes. The other X chromosome of the female is inactivated during embryonic development. Barr body is an inactive X chromosome present in a female cell. The number of Barr body is one less than the number of X-chromosomes. In the given example, there are total 4 X chromosomes. Hence, the number of Barr bodies are 4 - 1 = 3.
Thus, the correct answer is option C.
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
