Question

which example constitutes a gene pool?
o all genes of all the individuals in a specific population
o all genes of a single individual
o all alleles of one trait
o all genes of individuals of the same species

Explanation:

A gene pool is defined as the total genetic diversity found within a population or a species. It specifically refers to all the genes (including all alleles) of all the individuals in a particular population. A single individual's genes are just a small part of a gene pool. All alleles of one trait are a very limited subset. And "all genes of individuals of the same species" is too broad as it's about a population (a subset of a species in a specific area) rather than the whole species in most cases when referring to a gene pool in ecological - genetic context.

Answer:

all genes of all the individuals in a specific population