In humans, the allele for normal blood clotting, H, is dominant to the allele for hemophilia, h. This is a sex-linked trait found on the X-Chromosome. A woman
with normal blood clotting has four children, a normal son, a hemophiliac son, and
two normal daughters. The father has normal blood clotting. What is the
phenotype of mom?

Ithink all of these events

Many archeologists and anthropologists disagree with dr. thorne's view.  thorne strongly believes that what many calls "homo erectus"  was in fact  homo sapiens,  and that they migrated out of africa almost 2 million years ago and dispersed throughout europe and asia. that's way different  from what scientists have always believed about the evolution of the species.

D. global warming is your answer ( :