Humans who are positive for the Rh blood type have an antigen on their red blood cells. Humans who do not have the antigen on their red blood cells are Rh negative. The Rh blood type is dominant to Rh negative. What is the probability that a child will be Rh negative if the parents are heterozygous for Rh?

What role does differential reproduction play in natural selection? ! a) some organisms have different reproductive success due to nongenetic traits. b) some organisms have traits that them reach reproductive age. c) different methods of reproduction result in some organisms being genetically altered. d) reproduction varies among organisms due to pathogenic factors. the answer is not a or d based on other posts.

What is the best-known carbohydrate?

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.