Question

Achondroplasia is a form of dwarfism caused by a dominant allele. The homozygous dominant genotype causes death, so individuals who have this condition are all heterozygotes. If a person with achondroplasia mates with a person who does not have achondroplasia, what percentage of their children would be expected to have achondroplasia? A. 0% B. 50% C. 100% D. 75%

Answer 1

Answer:

There is a 50% chance to pass the gen with each pregnancy.

Explanation:

Achondroplasia is not usually an inherited condition. It is estimated that 80% of patients have healthy parents with regular sizes. They are born with the condition due to a new-gen alteration or mutation.

Then, the mutated gene has a 50% chance to be inherited by the patient's children.