Class Notes (835,006)
Canada (508,865)
Biology (6,794)
Biology 1001A (1,727)
Lecture 15

Lecture 15 Outcomes.docx

2 Pages
54 Views
Unlock Document

Department
Biology
Course
Biology 1001A
Professor
Cumming/ Damjanovski
Semester
Fall

Description
Lecture 15 Outcomes Types of non-random mating - Inbreeding or inbreeding avoidance - Assortative (more common) or disassortative(rare) mating - Often mating is not random *Side note: Hardy Wienberg works if mating is random. Effect of non-random mating on HWE and on evolution -Non-random mating perturbs HWE but doesn’t cause evolution - Non-random mating (specifically assortative) takes it out of HWE and changes the genotype frequencies but does not change allele frequencies of offspring generation to previous generation Characteristics of a scientific theory - Must be testable and falsifiable - Truth in science means that an assertion for which there is so much evidence that it would be perverse to deny it - See if observations and experiments support or contradict the prediction one makes - Theories and facts are different because theories graduate to fact-hood after repeat testing fails to falsify them - Assertions( statements) that cannot possibly be falsified are not scientific Components of the theory of evolution -Evolutions happens: change in allele frequencies in a population between generations. Maybe as a result of selection; ex. Peppered moth (adaptive evolution). Also may occur through random processes; can be adaptive or non- adaptive - Most evolution is gradual; tiny changes through time that gradually change phenotype - Speciation happens: many higher numbers of speciation events through time (single lineages separate into different categories/species through time) -All life is related through a common ancestry(LUCA) - Much of evolutio
More Less

Related notes for Biology 1001A

Log In


OR

Join OneClass

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

Sign up

Join to view


OR

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.


Submit