<span>i think it is a.Molecules move against their concentration gradient. hope it helps
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All of the answers would be correct,
hope this helped!! <span />
A good vector to genetically altered respiratory cells might be A VIRUS THAT HAS BEEN GENETICALLY ALTERED TO CARRY NORMAL HUMAN DNA.
Gene therapy is a medical method of treatment which uses genes to prevent or treat diseases. The method is used to correct the defects in genes which is causing a disease. In order to insert a normal gene to replace the defective one, a vector, which will carry the gene is needed. The vector that is usually used in this case is a virus, which has been doctored to carry a normal human DNA.
A microscope to examine the butterfly. and a small pair of tweezers to pick up and put down the butterfly
Recombination occurs when two molecus of dna exchange pieces of their genetic material with each other .
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