Hemophilia is a condition in which minor cuts and bruises can result in prolonged bleeding. Hemophilia is caused by a recessive allele for a sex-linked gene. If a man who does not have hemophilia has a son with a woman who is a carrier for hemophilia, what are the chances that their son will have hemophilia?

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

Which claim correctly describes how genes can produce a phenotype? one gene is responsible for all traits. each trait is determined by a single gene. one gene can be responsible for many traits. each gene is responsible for exactly one trait.