Diastrophic dysplasia- Is an inherited autosomal recessive manner. D represents

Question

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?

Explanation / Answer

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

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