Question

Define reproductive isolation and relate it to gene flow among populations.

A) Reproductive isolation is the unrestricted exchange of genetic material between populations, promoting gene flow.
B) Reproductive isolation is the isolation of populations, which inhibits gene flow.
C) Reproductive isolation has no impact on gene flow among populations.
D) Reproductive isolation enhances gene flow by promoting cross-breeding between populations.

Answer 1

Reproductive isolation is the isolation of populations, inhibiting gene flow. This prevents successful mating between species, leading to genetic divergence. Gene flow refers to the exchange of genetic material between populations, but reproductive isolation acts as a barrier to this process.

Step-by-step explanation:

Reproductive isolation is the isolation of populations, which inhibits gene flow. It means that members of a species are not able to mate successfully with members outside their species, thus hindering the exchange of genetic material. This isolation can occur due to various factors such as geographic barriers, behavioral differences, or genetic incompatibilities.

Gene flow, on the other hand, refers to the movement of genetic material between populations. It can increase genetic diversity within a species and prevent speciation. However, reproductive isolation acts as a barrier to gene flow, preventing the exchange of genetic material between populations and leading to the divergence of genetic traits.