Small mutations in these controller genes could produce new species.

Such mutations can produce a second set of wings.

Accordingly, mutation of these residues produces large effects on binding.

In biology and agriculture, radiation is used to induce mutations to produce new or improved species.

One version produces yellow dogs, and a mutation produces black.

But natural mutations would have produced some semi-tough stalks that held the seeds more firmly in place.

Mutation produces changes, and the fittest of these survives.

Yet, mutations in individual maize genes within a large gene family can produce a visible phenotype.

Mutations to homeobox genes can produce easily visible phenotypic changes.

This mutation produced an increase in the K i of 160 fold compared to wildtype receptors.