Answer:
these chromatids separate longitudinally to become individual chromosomes.
one chromosomes is composed of and DNA molecule
Answer: The Answers are, A: happens all the time, D: can be caused by genetic drift, and E: can be caused by natural selection.
The cell membranes begin to come apart when there is insufficient water around the cells. The cytoplasm of the cells becomes more concentrated, which slowly poisons the cells. The cell walls become brittle as they dry out, and some of them collapse. The central vacuoles in the cells lose water and can no longer help support the cells.
The central vacuoles in the cells lose water and can no longer help support the cells
Answer:
Mutations in the HBB (beta-globin) protein causes symptoms of sickle cell disease.
Hibernation is a way animals conserve energy to survive adverse weather conditions or lack of food.
