Q. Klinefelter’s syndrome results from
A) XX egg of Y sperm
B) XX egg and XY sperm
C) X egg and YY sperm
D) XY egg and X sperm
Explanation
The genotype of Klinefelter syndrome is XXY. In this there is one extra X-chromosome. This extrachromosome comes when there is non-disjunction of X-chromosome in ova-or-sperm fuses with Y or X-chromosome of sperm or ova resulting XXY genotype
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.