Answer:
Someone with blood type O has neither the A nor the B allele
Explanation:
The genotype must be AB. Someone with blood type O has neither the A nor the B allele. The genotype must be OO.
Answer:
Hematopoietic stem cells
Explanation:
These hematopoietic stem cells gives rise to the other blood cells in the bone marrow and the process is known as hematopoiesis. It occurs in the red bone marrow.
Bone marrow is the place where new blood cells are produced. It is the tissue comprising center of large bones and contains two types of stem cells: hematopoietic and stromal.
Natural? I know that it has 4 factors -<span>Variation. Organisms (within populations) exhibit individual variation in appearance and behavior. ... <span>Inheritance. Some traits are consistently passed on from parent to offspring. ... </span><span>High rate of population growth. ... </span><span>Differential survival and reproduction.</span></span>
