If two homozygous transgenic animals are mated, what percentage of offspring will be homozygous for the transgene?

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Multiple Choice

If two homozygous transgenic animals are mated, what percentage of offspring will be homozygous for the transgene?

Explanation:
When both parents are homozygous for the transgene, every gamete they produce carries the transgene on that chromosome. Fertilization then combines one transgene-containing allele from each parent, giving every offspring two copies of the transgene. In other words, every offspring will be homozygous for the transgene, so the percentage is 100%.

When both parents are homozygous for the transgene, every gamete they produce carries the transgene on that chromosome. Fertilization then combines one transgene-containing allele from each parent, giving every offspring two copies of the transgene. In other words, every offspring will be homozygous for the transgene, so the percentage is 100%.

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