Question

John had unattached earlobes like his father, but his mother has attached earlobes. What is johns genotype with unattached being dominant

Answer 1

Genotype refers to the complete genetic make-up and can also be referred to as the alleles an organism carries on a particular gene.

John's genotype with unattached being dominant is Aa.

• Using A to represent the alleles

• Since his mother has attached earlobes, her condition can only be inherited in the recessive condition (aa).
• So for John to have an unattached earlobe, his father has to be either AA or Aa.
• Therefore John's genotype would be Aa

Learn more about genotype: brainly.com/question/22117