"27 days, 7 hours, and 43 minutes for our Moon to complete one full orbit around Earth"
A person can only show a recessive trait if both of their parents carried at least one copy of each of the recessive allele. The parents do not need to show the trait, as one copy is not enough to reveal it, but they must both carry it.
Hope this helped!
Gametes
gametes is another word for sex cells
