Comparisons of neanderthal dna revealed that there are more similarities to non-african dna than reference sequences from west africans. Additionally, scientists found that neanderthal dna is as closely related to east asians as to europeans. This indicates that interbreeding occurred before human migration further east. What process of population genetics generated these results?.

if someone had the list of traits you provided

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).