BIO 101 - CHAPTER 13 - EVOLUTION

8 terms by jrs1985

Create a new folder

Advertisement Upgrade to remove ads

desaix summer 2011 biology 101 unc chapel hill

bottleneck effect

Genetic drift that occurs when the size of a population is reduced, as by a natural disaster or human actions. Typically, the surviving population is no longer genetically representative of the original population.

genetic drift

The gradual changes in gene frequencies in a population due to random events

founder effect

when a few individuals become isolated from a larger population, this smaller group may establish a new population whose gene pool isn't reflective of the source population

batesian mimicry

evolution by one species to resemble the coloration body shape or behavior of another species that is protected from predators by a venomous stinger bad taste or some other defensive adaptation

selective pressure

when the environment pushes an individual or population to adapt or evolve

quantitative inheritance

a phenotypic intermediate between two parents. polygenic traits controlled by more than one locus. ex: height.

polymorphism

the existence of two or more forms of individuals within the same animal species

polygenes

more than one gene affecting expression of a characteristic

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set