Class Notes (838,343)
United States (325,349)
BIOSC 0160 (73)
All (16)

Evolutionary Genetics - Natural Selection Notes

2 Pages
Unlock Document

Biological Sciences
BIOSC 0160
All Professors

3/20 Evolutionary Genetics: Natural Selection Mechanism of Evolution • Lamarck: Felt Needs • Darwin: Natural Selection Darwin’s Reasoning • Ernst Mayr (1980) o Observation 1: Individuals have incredible reproductive potential; populations have the potential for exponential growth o Observation 2: Most populations are stable in size o Observation 3: Natural resources needed for survival and reproduction are limited o Inference 1: Environment only supports so many individuals; only a few survive and reproduce because of this struggle (supported by direct observation of mortality) o Observation 4: Organisms in populations vary greatly; no two individuals are exactly alike o Observation 5: Much of this variation is heritable o Inference 2: Survival is not random; individuals whose inherited characteristics fit them to their environment will leave more offspring than less fit individuals Definition of Natural Selection Process in which individuals differ in survival and reproduction, that difference resulting from possession of alternative, heritable forms of a trait Formal Requirements • John Endler (1984) o Trait varia
More Less

Related notes for BIOSC 0160

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.