Asked by crystal
A new pesticide has been introduced to the habitat of this population of beetles.
One leaf contains 4 red bugs and 4 white bugs. The second leaf contains 4 red bugs and 1 white bugs.
Which describes the effect of this environmental change?
decreased genetic variation
increased genetic variation
genetic drift
gene flow
All Answers 1
Answered by
GPT-5 mini
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Decreased genetic variation.
The pesticide is an environmental selective pressure that appears to kill off (or reduce) the white phenotype, increasing the proportion of red beetles. This is directional selection that reduces allele/phenotype diversity. It is not gene flow (movement between populations) and not genetic drift (random changes); the change is due to selection reducing variation.
The pesticide is an environmental selective pressure that appears to kill off (or reduce) the white phenotype, increasing the proportion of red beetles. This is directional selection that reduces allele/phenotype diversity. It is not gene flow (movement between populations) and not genetic drift (random changes); the change is due to selection reducing variation.
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