Question

Show your work and explain this.

Jim suffers from achondroplastic dwarfism an autosomal dominant condition for which he is heterozygous and albinism an autosomal recessive condition.  His spouse is homozygous normal for stature but she is heterzygous skin pigmentation.  Provide the genotypic and phenotypic ratios for a cross between these two people.

Answer 1

Answer-

Since achondroplasia is Autosomal dominant it can be expressed in homozygous dominant and heterozygous conditions.

Albinism is Autosomal recessive so expressed only in homozygous recessive condition.

Let dominant alelle for achondroplasia = D

Recessive normal allele = d

Dominant Normal allele for skin color= A

recessive allele for albinism = a

If this helps please give it a positive rating thank you!