With others they amount up to around 20% of the gene pool.

But it's hard to believe they're from the same gene pool.

But, that doesn't mean their gene pool has nothing to offer.

And what a gene pool we'd have to work with, too.

With a limited gene pool, your people needed to make some changes.

He would be a wonderful addition to her available gene pool.

There were only four of them and not a sufficient gene pool.

So you weed out the gene pool at a young age.

She has her parents to thank for a generous gene pool.

Perhaps my son is simply following his father in the shallow end of the gene pool.