Is the Effect of an Individual Permanently Leaving a Population

question 63

Multiple Choice

Is the effect of an individual permanently leaving a population likely to have a greater genetic effect if the home population was large or if the home population was small?

• A)Large, because this is an example of disruptive selection.
• B)Large, because natural selection will cause a bottleneck to occur in the remaining individuals.
• C)Small, because the loss of just a few individuals may greatly reduce the remaining genetic variation.
• D)Small, because the remaining individuals will no longer be able to practice nonrandom mating.

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Definitions:

Curare

A toxic compound derived from South American plants, used historically as a paralyzing agent on arrows and in medical settings to relax muscles during surgery.

Homeostasis

The self-regulating process by which biological systems tend to maintain stability while adjusting to conditions that are optimal for survival.

Homeostatic Hormones

Hormones that regulate internal equilibrium by ensuring physiological systems remain stable and constant.

Morphine

A potent opiate analgesic drug derived from the opium poppy, used primarily for pain relief.