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NEET2018ZoologyPrinciples of Inheritance and VariationActual

A woman has X-linked condition on one of her X chromosomes. These chromosomes can be inherited by:

Options

  1. AOnly grandchildren
  2. BOnly sons
  3. COnly daughters
  4. 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.

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