The bird may fight off some viruses, ones with certain mutations.

People who carry certain mutations in the gene nearly always develop dementia.

In their theory, they describe how certain mutation and changes can cause apparent irreducible complexity.

The exact method of protein disruption has been elucidated in certain mutations.

As it turns out, damage by toxins to alpha-synuclein looks quite similar to what results from certain genetic mutations.

In some instances efforts to eradicate certain single-gene mutations would be nearly impossible.

It was also shown in some experiments that certain mutations affect experience-based behaviour.

"If I induce a certain mutation now, is that going to make a drug I want to use two years from now less effective?"

Certain mutations in Ras can leave it in the "on" configuration, such that uncontrolled cell growth results.

For another thing, with a certain mutation within the BRCA1 gene, you have an 85 percent chance to develop breast cancer.