Hemophilia is a condition in which minor cuts and bruises can result in prolonged bleeding. Hemophilia is caused by a recessive allele for a sex-linked gene. If a man who does not have hemophilia has a son with a woman who is a carrier for hemophilia, what are the chances that their son will have hemophilia?

"do a testcross with a homozygous recessive plant."

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

if, i suppose that a bee stings me swinging my hand away from a bee. then that if, i persist patient when a bee or wasp areas on your surface to investigate a scent or to take h2o and i secreting heavily, the bug ultimately will move of its personal agreement. if i don't need to set for it to disappear, lightly and gently wipe it off with a part of the paper.

not sure what it is