Answer to Question #185341 in Genetics for Bianca Isabel Limon

Question

1. Jin has blood type A. He marries Anna who has blood type B. They have four children, and all the blood types are represented in the children’s blood types (type A, B, AB, and O).

a.    What are the genotypes of Jin and Anna?

 

 

b.    Draw a Punnett square solution that shows how the genotypes of the children were made possible.

 

1.    In humans, Tay Sachs disease is a disorder is a recessive disease that causes an absence of enzymes needed to break down fatty substances. However, even if it is a recessive disorder, heterozygous individuals have a “partial manifestation” of Tay Sachs disease, where-in these individuals are able to produce half of the enzymes needed by the body, therefore making them normal individuals. Use the letter H to represent the traits.

a.    What type of inheritance is shown by Tay Sachs? Explain in not more than 5 sentences.

 

 

 

Answer 1

Mother's genotype A

Father's genotype BO