selective pressure

The cause of this selective pressure has not yet been identified.

In most cases, the source of selective pressure is unknown.

This may be due to the opposite selective pressure involved.

Hence, a greater sexual selective pressure on women to lose body hair.

For thousands of years, states have evolved under other selective pressures.

The lack of diversity created can make the population at risk to other selective pressures.

With a short enough generation period evolution can happen extremely quickly in the face of strong selective pressure.

The second copy of the gene is often relatively free from selective pressure.

The new versions were maintained, an instance of positive selective pressure.

Another hypothesis is that these occurred as a consequence of selective pressure.

Something must have happened to weaken the selective pressure drastically.

These conditions will then result in a selective pressure towards cancer cell proliferation.

I suspect that selective pressure was applied mostly by females.

Winter further argued that in the case of weak competition selective pressure will be limited.

There is therefore usually strong selective pressure to remove such mutations quickly from a population.

The only fundamental selective pressure is the ability of structures to adhere to physical law.

Still, many researchers believe there is some selective pressure on bacteria to maintain small genome size.

It developed as a response to the selective pressures of malaria in these regions.

Two consecutive generations might be faced with very different selective pressures.

Such similarities are a result of both populations being exposed to the same selective pressures.

This model is better, but it doesn't take into account the selective pressure of amino acid changes.

Since the stakes are so high, the selective pressure acting on these birds' vision is quite intense.

As someone else pointed out, undergoing genetic changes (which these fish have) under selective pressure is evolution.

It will only calculate selective pressure within protein coding regions.

"There are so many that there is no selective pressure on any virus," he said.