Answer:
sister chromatids separate and begin to move towards the pole of the cell during anaphase.
<span>There are other avenues to find the cure to diseases that do not involve exploiting fetuses.
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Answer:
A multicellular organism develops from a single cell (the zygote) into a collection of many different cell types, organized into tissues and organs.During development, cells use both intrinsic, or inherited, information and extrinsic signals from neighbors to "decide on" their behavior and identity.
True, just look at the weather channel on TV :)