Study Guides (248,019)
Canada (121,233)
Biology (1,267)
BIO3102 (98)
All (96)

chapter9.docx

3 Pages
50 Views
Unlock Document

Department
Biology
Course
BIO3102
Professor
All Professors
Semester
Winter

Description
93dgeneration of genetic variability by meiosis is a prime evolutionary advantage of sexual reproductionthis variability increases the chance of some offspringshaving combinations of alleles which will be successful in surviving and reproducing in changing environments scientist believe that meiosis exists to1 create variability2 generate repaired chromosomes to be passed on to the next generations NO 2 humansexcept twinslook alike or have identical biochemical and physiological characteristics during meiosis and fertilization genetic variability arises from 4 sources1 genetic recombination of homologous chromosomes 2 the differing combination of maternal and paternal chromosomes separated to be poles during anaphase 13 the differing combination of recombinant chromatids segregated to the poles during anaphase 24the particular sets of male and female gametes that unite in fertilization the 4 sources work together to produce variability so that no 2 products of meiosis produced and no 2 zygotes produced will have the same genetic makeupGenetic recombination is the key genetic event in prophase 11 starts when homologous chromosomes pa
More Less

Related notes for BIO3102

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