Male pattern baldness is a recessive sex-linked trait carried on the X
chromosome. A man with male-pattern baldness is concerned about
having children who also lose their hair. Which of these would be true
about the chances of his happening?

A. all his sons will develop baldness
B. his sons have a chance of developing baldness if he marries a woman who is heterozygous for the trait
C. he can only have children that develop male-pattern baldness if he marries a woman who is homozygous dominant for the trait
D. none of his sons will develop baldness

How do you date a sample of rock that you suspect as being one of the earliest on earth

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

Which statement describe events that occur during interphase?