Question

robert is the infant son of aimee and brian. he has tay-sachs disease, which is an inherited disorder that destroys the nerve cells (neurons) of the brain. neither aimee nor brian have tay-sachs disease, but they each had several male and female cousins that had it. how is it possible that neither parent has the disease but their child does?

Answer 1

Both parents are heterozygous, and the condition is brought on by a recessive allele.

Why are men more likely than women to develop genetic illnesses ?

Males are more susceptible because they are located on the X chromosome. Why do sex-related genetic illnesses afflict men more frequently than women? Genetic diseases that are associated with sex are often recessive and found on the X chromosome.

Why is hemophilia more prevalent in men than women?

Why does hemophilia affect men more frequently than women? On the X chromosomes is where the hemophilia gene resides. Girls are XY and males are XX, hence boys have a twofold greater probability of getting hemophilia than do girls.

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