Bacteria known as Bt contain a gene that codes for a protein which kills corn-eating insects since 2003 the gene has been transferred from bt to corn causing the corn to produce the Bt protein insects such as the western corn rootworm die when they eat the genetically modified corn what is a potential problem of this manipulation

a = executive branch; b = judicial branch

answer: b

coz red blood cells marrow and circulates the body for 120 days.

the last one: artificial selection/genetic engineering

plant breeding is modifying the genetic composition of the plant - but this isn't cloning (which is specifically introducing a gene into a genome). but you are artificially selecting for the phenotype that you want.

the second one is literally genetic engineering - the gene would have been cloned first and then inserted or genetically engineered into the new plant cell (the cotton).