Question

The problem is autosomal. Show your work. If necessary send me a photograph showing your work with the answers.

Achondroplasia is a type of dwarfism cause by an autosomal dominant allele. If a heterozygous acondroplastic dwarf has a child with another heterozygous acondroplastic dwarf what would be the chance of producing an offspring with Achondroplasia?

Answer 1

Answer-

Let dominant allele for achondroplasia be A

Recessive allele for achondroplasia be a

Heterozygous achondroplasic parents ,will be Aa

Parents - Aa x Aa

F1-

	A	a
A	AA	Aa
a	Aa	aa

There is 3/4 or 75% chance of producing an offspring with achondroplasia.

Since it is Autosomal dominant ,it will be inherited both in homozygous dominanant and Heterozygous genotypes.

1/4 or 25% chances of offspring being unaffected m the Genotype would be homozygous recessive - aa.

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