Class Notes (834,043)
Canada (508,293)
BIOA01H3 (687)

genetics 2.docx

3 Pages
Unlock Document

Biological Sciences
Mark Fitzpatrick

Gametes: end result of meiosis Gametogenesis: production that creates sperm and egg Spermatogenesis: process of turning sperm gamete into sperm cell Oogenesis: process of making an egg from an egg gamete cell Spermatogenesis: -Takes place in testes of male -Spermatogonium: start of production cell -Haploid from meiosis goes through spermatogenesis and gets larger to make sperm -Results in a mature sperm with less cytoplasm and long flagellum -Spermatogenesis takes place throughout a man’s life and during mating seasons every year. Oogenesis -Takes place in ovaries of women -oogonium: start of egg cell -Unlike spermatogenesis, cytoplasm is NOT divided equally -Divided towards primary oocyte and other to Polar body -After Meiosis 2, only 1 cell survives, purpose is to give it enough nutrients and cytoplasm. -In humans, Meiosis 1 begins before birth in ovarian tissues, and eggs are frozen -Menopause: the pause of the frozen eggs prior birth till fertilization -Meiosis takes place AFTER fertilization -Releases 1 oogenium each month Karyotypes -Shows all the chromosomes in a cell arranged in a grid from Largest to smallest with centromeres lined up -Chromosomes are stained with Giemsa, a chemical that makes A and T bonds -Reveals the unique G-branding Preparation -Fetal Blood ß common -If inside fetus, they use Amniocentesis -Amniocentesis: insert a syringe in amniotic fluid to take floating skin cells. -Do centrifuge to
More Less

Related notes for BIOA01H3

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.