Genetics Answers

A woman with type A blood has parents who are both type AB and a husband who is a type B. What is the probability that their first child will be a son with type O blood?explain its mechanism

How do Punnett squares display expect genotypic and phenotypic ratios among progeny? 

How do we know that specific genes are located on the sex determining chromosomes rather than on autosomes

In sesame, the one-pod condition (P) is dominant over the three-pod condition (p) and normal leaf (L) is dominant over wrinkled lead (1). Determine the genotype and phenotype of the two parents that produce the following progeny: 318 one-pod normal leaf, 98 one-pod wrinkled leaf, 323 three-pod normal leaf, and 104 three-pod wrinkled leaf.