The ratio of the offspring of 9: 3: 3: 1 is for the: a. phenotype b. genotype c. both types d. neither type

The correct answer is the Phenotype.
The phenotypic ratio of 9:3:3:1 is  the ratio associated with a dihybrid cross. It is a classical Mendelian example of independent assortment. It is a result of crossing two organisms that are heterozygous for two traits.

Ifound this on google “aristotle (384–322 bc) in western scientific taxonomy the greek philosopher aristotle was the first to classify all living things, and some of his groups are still used today, like the vertebrates and invertebrates, which he called animals with blood and without blood.” i hope this you for what your looking for.