A large, randomly mating population of beetles exists in a stable environment where no genetic mutation, gene flow through migration, or natural selection takes place. According to modern evolutionary theory, what will happen to the allele frequencies within the gene pool of this population over successive generations?
- The allele and genotype frequencies in the population will remain constant from generation to generation.Answer
- BIndividual beetles will acquire beneficial somatic adaptations during their lifespan and transmit them to their offspring.
- CAll continuous genetic variations in the population will instantly transform into discontinuous categories.
- DThe genotypic ratio of every gene locus in the offspring will automatically default to a 3:1 ratio.
Answer
The allele and genotype frequencies in the population will remain constant from generation to generation.
According to modern evolutionary theory and population genetics (Hardy-Weinberg principle), a large, randomly mating population free from evolutionary forces such as natural selection, gene flow, genetic drift, and mutation will maintain constant allele and genotype frequencies across generations, resulting in genetic equilibrium.
Step-by-Step Solution
Key Concept
Hardy-Weinberg Equilibrium and Gene Pool Dynamics
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