Grade 12Zoology
calculate the number of barr body in female having the genotype of 2a+XXXX - 1
- 2
- 3
- 4
calculate the number of barr body in female having the genotype of 2a+XXXX
- 1
- 2
- 3
- 4
3 Answers
Gaurav
Hello Student
correct answer is 3. 3
The phenomenon of inactivation of X-chromosomes was confirmed by presence of Barr Body. Whenever, the number of X- chromosomes is two or more than two. The number of barr body is one less than the number of X-chromosomes.
correct answer is 3. 3
The phenomenon of inactivation of X-chromosomes was confirmed by presence of Barr Body. Whenever, the number of X- chromosomes is two or more than two. The number of barr body is one less than the number of X-chromosomes.
Tousif
At a time only one x chromosome can activate in cell . So no. Of bar body = t.n. x - 1 .( t.n. _ total number of x chtomoschr)
So correct answere is 3
DEEKSHA PARASHAR
INACTIVE X CHROMOSOME IN FEMALE SOMATIC CELL IS BARR BODY. NO OF BARR BODY = NO OF X CHROMOSOME-1. SO ANSWER IS 4-1=3
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