Answer:
He used peas because they are self pollinating,they grow fast,and they have many traits
The answer is A because I’m in advanced classsss!!!
Well it surely isn't nuclear, or electrical. It's not radiant either.. So the only answer is chemical.
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.