Controls involuntary response

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna