Question

what does the term alleles refer to in genetics? a. the physical appearance of an organism b. the process of cell division c. different species of plants d. different forms of a gene

Explanation:

In genetics, alleles are different forms of a gene. They can code for different versions of a trait. For example, for the eye - color gene, there are different alleles for blue, brown etc. The physical appearance of an organism is phenotype. Cell - division is a different biological process. Different species of plants have nothing to do with the concept of alleles within a single species' genes.

Answer:

d. Different forms of a gene