Male pattern baldness is an X-linked recessive trait that causes males to start losing their hair early in life. Tom is affected (XbY). His wife is unaffected (XBXB) and is not a carrier. What is the probability that his son will have male pattern baldness?

Acm ruler with main graduations from 1 to 10 from left to right there are 10 secondary graduations between each of the main graduations there is a line that begins. at the left end of the ruler 10 secondary graduations to the left of the “1 main graduation the right end of the line ends on the eighth secondary graduation to the right of 3 how long is the line