Explain how the amino acid substitution shown in figure 1 is nost likely ti affect the function of receptor x

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).

answer; blank(1); cervical; blank(2); lumbosacral;