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? ?

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.