Individuals may have partial immunity, from previous infection or vaccination, to infection with influenza strains that have undergone antigenic drift. However, antigenic shift generates novel ...

Drift is a subtler process than shift and involves the accumulation of mutations within the antibody-binding sites in the hemagglutinin (see Figure), the neuraminidase, or both that abrogate the ...

The differences in the seasonal flu usually result from point mutations in the influenza virus genes, while major pandemics are often connected to profound genetic shifts known as reassortments.

Genetic drift is the term used in population genetics to refer to the statistical drift over time of gene frequencies in a population due to random sampling effects in the formation of successive ...

“We would expect to see a major shift,” Dr. Poinar said. ... long known that mutations can become more common in a population thanks to the vagaries of history — a process called genetic drift.

Genetic Drift and the Founder Effect: Eastern Pennsylvania is home to beautiful farmlands and countryside, but it's also a gold mine of information for geneticists, who have studied the region's ...

Continental islands offer an excellent opportunity to investigate adaptive processes and to time microevolutionary changes that precede macroevolutionary events. We performed a population genetic ...

Tolerating genetic drift while evolving new functions Researchers have found that heat shock proteins called chaperones help ensure … ...

People often talk about random genetic drift. Like sexual selection it is the deus ex machina of choice when you are shit out of luck in regards to hypotheses. And yet though it looms large in our ...

Antigenic Drift vs Antigenic Shift Even with careful research, a certain amount of educated guesswork is involved for manufacturers who select strains to incorporate into the annual flu vaccine.

Genetic Drift and the Founder Effect: Eastern Pennsylvania is home to beautiful farmlands and countryside, but it's also a gold mine of information for geneticists, who have studied the region's ...