Which of the following statement regarding challenges for using gene drives to eradicate invasive pests is INCORRECT?

Question

BlackTom AI · Accepted Answer

The question asks us to identify which statement about challenges in using gene drives to eradicate invasive pests is INCORRECT. Below, I examine each option in turn.
Option 1: 'Spatial heterogeneity can reduce the efficacy of gene drives' — This is a plausible challenge. In natural landscapes, populations are not perfectly mixed; barriers, habitat fragmentation, and local differences can slow or unevenly spread a gene drive, decreasing overall effectiveness. Thus, this statement is true as a challenge.
Option 2: 'Populations can evolve resistance to gene drives' — This is well-documented as a major potential problem. If resistance alleles arise or are selected for, they can halt or slow the spread of the drive, undermining the strategy. Therefore, this statement is true as a challenge.
Option 3: 'There is a risk that the gene drive will be introduced to the native population' — Gene drives are designed to spread through target populations, but unintended spread to non-target or native populations is a real ecological and regulatory concern. The possibility of horizontal or vertical transfer across populations means this statement accurately reflects a challenge. So this is true.
Option 4: 'Short generation times reduce the efficacy of gene drives' — This statement is counterintuitive and, in fact, opposite to what is generally expected. Short generation times typically speed up the spread of a gene drive through a population, increasing efficacy rather than reducing it. Therefore, this statement is incorrect as a challenge.
In summary, options 1, 2, and 3 describe credible challenges that could impede gene-drive deployment, while option 4 presents a claim that contradicts the typical dynamics of gene-drive spread, making it the INCORRECT statement.

Which of the following statement regarding challenges for using gene drives to eradicate invasive pests is INCORRECT?单项选择题

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