Akilogram is an si unit. which quantity might you measure in kilograms?

Since weight of a body is nothing but Mass of the body multiplied by acceleration due to gravity acting on it, the SI unit of weight will be the same as the SI unit of force (mass x acceleration), that is, Newton.

However, you may note that since the acceleration due to gravity is different on different heavenly bodies, the value of weight will be different on different bodies, unlike the mass, which is the same throughout the universe.

I hope this helps! :)

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).