How can genetic principles help advise prospective parents A

How can genetic principles help advise prospective parents? A boy is terminally it with a rare gentic disorder called adenoleukodystrophy (ALD) is caused by a mutation that leads to progressive brain damage, failure of the adrenal glands, and eventual death. A pedigree of a family with ALD follows. Part A Which phrase describes the female in the first generation? equally likely to be homozygous dominant or heterozygous likely to be heterozygous likely to be homozygous for the dominant allele likely to be homozygous for the recessive allele

Solution

Part A

Likely to be homozygous to the recessive allele.

Adrenoleukodystrophy is a severe brain disorder that mainly affects men and boys. In this genetic disease, the protective sheath called myelin is destroyed that surrounds brain\'s neuron\'s which allow to think and control our muscles. It is a disease linked to X chromosome.