Class Notes (837,998)
Canada (510,614)
Biology (2,271)
BIOL 308 (146)
Lecture 9

Lecture 9 - Meiosis - BIOL308.pdf

5 Pages
57 Views
Unlock Document

Department
Biology
Course
BIOL 308
Professor
Bruce Wolff
Semester
Fall

Description
Lecture 9MeiosisA fundamental problem a paradox for nature re geneticsHow to preserve the information while keepingmaking it variable at the same timeas variability is very important for survival if lifeenvironmental conditions changeResolution of the paradox through sexual reproductionand meiosisSexual ReproductionProduction of special reproductive cells or gamete1n1Fusion of gametes fertilization zygote2n2Gametes produced in specialized tissues through reductional 2nn cell divisionmeiosisThree types of sexual life cyclesReduction of chromosome numberonly one roundof chromosome DNA replicationone duplication of genetic material but two meiotic divisionsHomologous chromosomes containing duplicated DNA separate 2nnSister chromatids separate nnInterphaseHomologous pairof chromosomesin diploid parent cellChromosomesreplicateHomologous pair of replicated chromosomesSisterchromatidsDiploid cell withreplicatedchromosomesMeiosis I1HomologouschromosomesseparateHaploid cells withreplicated chromosomesMeiosis II2Sister chromatidsseparateHaploid cells with unreplicated chromosomesMeiosis IMeiosis II NOTES FROM LECTURES Page 1
More Less

Related notes for BIOL 308

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