Diastrophic dysplasia Is an inherited autosomal recessive ma
Diastrophic dysplasia- Is an inherited autosomal recessive manner. D represents the normal allele and d represents the mutant.
Achondroplasia- Inherited in an autosomal dominant manner A represents the mutant allele and a represents the normal allele. AA individuals do not survive embryogenesis.
Both of these make the person small
Matt has Diastrophic dysplaisa who is the father.
The mother has Achondroplasia- whose family has no history of Diastrophic dysplaisa (assume they are not carriers)
They have a son who is also small is it because ofDiastrophic dysplaisa or Achondroplasia. How do you know?
Solution
The genotypes of the parents are (Mother) AaDD X aadd (Father)
Their offspring will be AaDd- who will be exhibiting the character Achondroplasia as it is autosomal dominant

