Chloe has the scaly skin condition icthyosis,which is X-linked recessive.Which of the following is most likely true?

Question

Quizplus · Accepted Answer

Icthyosis is an X-linked recessive condition, which means that it is carried on the X chromosome. Males who inherit the affected X chromosome will show symptoms of the condition, while females need to inherit two affected X chromosomes (one from each parent) to show symptoms. Therefore, Chloe's father cannot be affected, as he would not pass on an X chromosome to his son. Chloe's mother must be a carrier or affected, but since Chloe has the condition, her mother must be a carrier, and her father must have an affected X chromosome. Therefore, the answer is D - her mother was a carrier and her father was affected.

Chloe Has the Scaly Skin Condition Icthyosis,which Is X-Linked Recessive