Roger and Gayle are both of normal phenotype but have a son with Muscular Dystrophy, a...
Roger and Gayle are both of normal phenotype but have a son with Muscular Dystrophy, a sex-linked recessive disorder. Gayle is pregnant and amniocentesis shows the fetus is male. What is the probability that the fetus will suffer from muscular dystrophy?
Homework Answers
X linked or Y linked :- If this disease is Y linked then father
should be diseased because son get Y chromosome from father.
So, this is X linked disease.
Dominant or recessive :- If inheritance pattern this disease is
dominant then any of parents should be diseased but both parents
are normal.
So, this is recessive inheritance pattern.
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Roger and Gayle are both of normal phenotype but have a son with
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