There is a in four chance that the child will not have, but will carry a gene for sickle-cell anemia.

Which animal group is the largest and contains more species from all the other living groups combined? is it mammals or

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.