Male-limited precocious puberty results from a rare autosomal allele (P) that is dominant over the allele for normal puberty (p) and is expressed only in males. A male and female that both went through normal puberty have two sons. The first son undergoes precocious puberty but the second undergoes normal puberty.
-What is the genotype of the father?
A) PP
B) Pp
C) pp
D) PP or Pp
E) Pp or pp

Question

Male-limited precocious puberty results from a rare autosomal allele (P) that is dominant over the allele for normal puberty (p) and is expressed only in males. A male and female that both went through normal puberty have two sons. The first son undergoes precocious puberty but the second undergoes normal puberty. 
-What is the genotype of the father?
A) PP
B) Pp
C) pp
D) PP or Pp
E) Pp or pp

Quizplus · Accepted Answer

The Answer of Male-limited precocious puberty results from a rare autosomal allele (P) that is dominant over the allele for normal puberty (p) and is expressed only in males. A male and female that both went through normal puberty have two sons. The first son undergoes precocious puberty but the second undergoes normal puberty. 
-What is the genotype of the father?
A) PP
B) Pp
C) pp
D) PP or Pp
E) Pp or pp

Male-Limited Precocious Puberty Results from a Rare Autosomal Allele (P)