If a mother carries a recessive allele for a genetic disorder, such as cystic fibrosis, under what circumstances will her children inherit the disorder?

a. the children must be female like the mother to inherit the disorder.
b. the paternal grandfather must also carry the recessive allele.
c. the children's father must also carry the recessive allele.
d. the mother's father must also carry the recessive allele.

i think the answer is a, is that correct? ?

Fruit bats in central america eat bananas and other fruits. banana plants rely on bats for pollination. what would be the most likely consequence on the banana crop if fruit bats were eliminated from the area? the banana crop would increase because bats would stop eating the crops. the banana crop would decrease because bats would no longer pollinate the crops. the banana crop would remain constant because bees would replace the bats. the banana crop would remain constant because the plants would adapt using asexual reproduction.