Question

Phenylthiocarbamide (PTC) is a synthetic bitter substance. Interestingly the ability to taste PTC is thought to be under the control of a dominant allele in a Mendelian genetics inheritance system. If your biological father can taste the bitter substance and your biological mother can not taste the bitter substance, what are the odds you are (1.) able to taste PTC and (2.) not able to taste PTC? How did you come to your conclusion?

Eye coloration in humans was once thought to be controlled by a Mendelian inheritance system. Recently evidence has pointed to eye color not being inherited as a Mendelian trait. If john's biological father has brown eyes and his biological mother has green eyes, how does john have blue eyes? (hint: what is a non-Mendelian mode of inheritance and how could it work).

Answer 1

1) explanation along with answers has been attached below

2) here children has blue eyes different than their parents. Here do much variation in the trait is present. This means thiese type of inhrmeritance are regulated by polygenic inheritance. Here multiple gene exist which control the gene.