Question

The largest unit within which gene flow can readily occur is a

(A) population.

(B) species.

(C) genus.

(D) hybrid.

Short answer

1. The term "population" is false.
2. The term "species" is true.
3. The term"genus" is false.
4. The term"hybrid" is false.

Step-by-step solution

Gene flow

The gene flow is demarcated as the process that involves the interchange of genetic factors in the populace of species. It upsurges the diversity in terms of genetic materials and the grouping of traits. Another name for the process of gene flow is described as gene migration.

Explanation of option '(A)'

The population is the term that describes the living of individuals in a specific region. However, it cannot be stated as the largest unit inside which the gene flow can occur.

Thus, the term population refers to the groups of individuals but not the largest unit.

Therefore, the given term is false.

Explanation of option '(B)'       

The largest unit inside which interbreeding can voluntarily happen is demarcated as species. Species fall under the category of an assembly of organisms that possess the same characteristics and can also exchange their genes and breed with each other.

Thus, species are characterized as the largest unit in which gene flow can easily occur.

Therefore, the given term is true.

Explanation of option '(C)'

Genus and phylum possess different species. Also, they all don't share the same features, and they cannot breed with precise creatures, which decreases gene flow.

Thus, the genus cannot be characterized as the largest unit in which gene flow can occur.

Therefore, the given term is false.

Explanation of option '(D)'

Hybrid is the terminology that arises due to the outcome of breeding amongst two diverse species. They are often characterized as sterile.

Thus, the hybrid cannot be characterized as the largest unit in which gene flow can occur.

Therefore, the given term is false.