NEET 2018
- Exam
- NEET
- Year
- 2018
- Subject
- Zoology
- Chapter
- Principles of Inheritance and Variation
NEET 2018 · Zoology · Principles of Inheritance and Variation
A woman has X-linked condition on one of her X chromosomes. These...
A woman has X-linked condition on one of her X chromosomes. These chromosomes can be inherited by:
Options
- AOnly grandchildren
- BOnly sons
- COnly daughters
- DBoth sons and daughters
Correct answer
D. Both sons and daughters
Step-by-step solution
The woman is the carrier of X-linked condition, and she can transmit the carrier allele to both her son and daughter, The resulting son will become diseased because X-linked disorder always affect males due to the presence of single X-chromosome.
The daughter offspring will become a carrier but not diseased because females are affected by X-linked disorder in homozygous recessive condition, i.e. two recessive alleles are required.