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Gene pool of a population tends to remai...

Gene pool of a population tends to remain stable if the population is large, without large scale mutations, without migration and with

A

Random mating

B

Moderate environmental changes

C

Natural selection

D

No predator control

Text Solution

AI Generated Solution

The correct Answer is:
To answer the question regarding the stability of the gene pool in a population, we need to analyze the conditions under which the gene pool remains stable. The question states that the gene pool tends to remain stable if the population is large, without large-scale mutations, and without migration. We need to identify the fourth condition from the given options. ### Step-by-Step Solution: 1. **Understanding Gene Pool**: - The gene pool of a population refers to the total collection of genes and their alleles present in that population. A stable gene pool means that the genetic composition does not change significantly over time. 2. **Conditions for Stability**: - The question specifies three conditions: - A large population size. - Absence of large-scale mutations. - No migration (which means no new genes are introduced from outside). 3. **Evaluating the Options**: - We need to evaluate the provided options to find the correct condition that contributes to the stability of the gene pool. a. **Random Mating**: - Random mating ensures that all individuals have an equal chance of mating with each other, which helps maintain genetic diversity and prevents the accumulation of specific alleles. This condition supports a stable gene pool. b. **Moderate Environmental Changes**: - Moderate environmental changes can lead to adaptations in the population, which may alter the gene pool over time. This does not support stability. c. **Natural Selection**: - Natural selection favors certain traits over others, leading to changes in allele frequencies in the gene pool. This process can destabilize the gene pool by favoring specific genes while eliminating others. d. **No Predator Control**: - Without predator control, the population dynamics can be affected, leading to potential overpopulation or extinction of certain species. This can also lead to instability in the gene pool. 4. **Conclusion**: - Among the options, **random mating** is the only condition that supports the stability of the gene pool. Therefore, the correct answer is **random mating**. ### Final Answer: The gene pool of a population tends to remain stable if the population is large, without large-scale mutations, without migration, and with **random mating**. ---
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