If the dna base sequence read ggg ctt ctt aaa instead, would this result in sickle cell hemoglobin? explain and show how you know.

i think the answer is c hope this

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).