Sentences with phrase «exact mutation»

The researchers haven't yet found the exact mutation responsible for the worm resistance and asthma susceptibility.

In the case of β - ionone, the smell associated with violets, McRae and colleagues managed to pinpoint the exact mutation (a change in the DNA sequence) in the odorant receptor gene OR5A1 that underlies the sensitivity to smell the compound and to perceive it as a floral note — people who are less good at smelling β - ionone also describe the smell differently, as sour or pungent, and are less likely to find it pleasant.

But despite decades of research, scientists didn't know the exact mutation responsible for the once - unusual dark wings.

The exact mutation varies from patient to patient but in 65 percent of cases, the dystrophin gene is missing large sections of DNA called exons, which carry the instructions for protein production.

Then, by comparing people with brown or blue eyes, including people from Jordan and Turkey, the researchers were able to pinpoint the exact mutation.

The technique can not identify the exact mutations that cause illness or even pinpoint specific genes.

«As has been quoted several times in the press already, the exact mutations that made this transformation possible were not particularly novel or unexpected so anyone with a reasonable knowledge of influenza virology could probably guess at them if they so wished.