What is the controversy around stem cells?

The stem cell controversy is the consideration of the ethics of research involving the development, and use of human embryos. Most commonly, this controversy focuses on embryonic stem cells. Not all stem cell research involves human embryos.

Explanation:

Joe gay friend is going to be a good boy and he is going through the process and you know that you don’t want him and you want him two more to

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).