1. barney and betty are about to have their first child. they both have "normal" feet but barney's father has flat feet and betty has a child from a previous marriage who has flat feet, meaning they are both heterozygous for the trait. what is the probability that they will have a boy with flat feet(recessive trait)?

a.25%
b.50%
c.100%
d.75%

2. humans, the ability to roll the tongue is a dominant trait. the inability to roll the tongue is a recessive trait. if two individuals homozygous recessive for this trait have a child, what is the chance that the child will be able to roll his tongue?

a.100%
b.0%
c.50%
d.25%

These are the correct answers to the following questions:

1. Barney and Betty are about to have their first child. They both have "normal" feet but Barney's father has flat feet and Betty has a child from a previous marriage who has flat feet, meaning they are both heterozygous for the trait. What is the probability that they will have a boy with flat feet(recessive trait)?

A.25%
B.50%
C.100%
D.75%

2. humans, the ability to roll the tongue is a dominant trait. The inability to roll the tongue is a recessive trait. If two individuals homozygous recessive for this trait have a child, what is the chance that the child will be able to roll his tongue?

A.100% 
B.0% 
C.50%
D.25%