Which lists three parts of sunlight that make up some of the visible spectrum? a) green, blue, indigo
b) infrared, red, orange
c) ultraviolet, infrared, electromagnetic
d) violet, ultraviolet A, ultraviolet B

you know they are heterozygous for a trait because they have it as jj or jj.

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).