The following are the bases on one side of the DNA molecule. List the bases that would be on the opposite side of the DNA. G- C- T- C- A- G- G- C- G-

C-G-A-G-T-C-C-G-C

Explanation:

The letters each have their own opposites. T is always the opposite of A. G is always the opposite if C

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

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).