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Select the incorrect statement regarding inbreeding.

1. Inbreeding depression cannot be overcome by out-crossing.
2. Inbreeding helps in elimination of deleterious alleles from the population.
3. Inbreeding is necessary to evolve a pure line in any animal.
4. Continued inbreeding reduces fertility and leads to inbreeding depression.

Correct answer: Inbreeding depression cannot be overcome by out-crossing.

Solution

The incorrect statement is the one claiming inbreeding depression cannot be overcome by out-crossing. In reality, out-crossing often restores heterozygosity and can reduce or reverse inbreeding depression.

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