Because of base pairing in dna, the percentage of A adenine molecules in DNA is about equal to the percentage of guanine molecules B pyrimidines in dna is about equal to the percentage of purines C purines in dna is much greater than the percentage of pyrimidines D cytosine molecules in dna is much greater than the percentage of quanine molecules

c-reactive protein (crp) is an acute phase protein belonging to pentraxin family of proteins, whose levels increases 1000-fold or more in concentration in blood during the occurrence of an injury, inflammation or tissue death.

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).