For the answer to the question above,<span> I think the answer is simply because the X chromosome is obtained from both father and mother. they are not now both mixed and it's almost impossible to study the x chromosome patterns only</span>
<span>The potato gene pool is being reduced.</span>
C. a toy train is the item that has characteristics similar to a scientific model.
Answer:
Because different cells are needed for various things. One single cell cannot do everything by itself.
Explanation: