White forelock of hair is due to a dominant gene (W). A mom with a white forelock and a dad who does NOT have a white forelock, have a child without a white forelock.
These parents are about to have a second child. What are the chances that their second
child HAS a white forelock?

So the mom has the genes of Ww because for the first kid not to get it she must have a recessive gene. The Father for sure has 2 recessive genes, ww, meaning the kid has a 50/50 chance. The kid could get Ww or ww.

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.