Class Notes (839,327)
Canada (511,270)
Biology (2,229)
BIO230H1 (243)
Lecture 10

BIO230 Lecture 10 and 11.docx

2 Pages
113 Views

Department
Biology
Course Code
BIO230H1
Professor
Jennifer Harris

This preview shows 80% of the first page. Sign up to view the full 2 pages of the document.
Description
BIO230 Lecture 10 and 11 1053-1055 The Cell Cycle  The only way to make a new cell is to duplicate  Cell cycle: essential mechanism to determine how a cell grows  Cell cycle control system is important to reduce damage done to the cell  Duplication of the genome is important Overview of the Cell Cycle  There are 4 phases The Eukaryotic Cell cycle is Divided into 4 phases  The basic function of the cell  Duplicate the amount of DNA  Chromosome duplication occurs in s phase (Synthesis of DNA)  M phase (mitosis): involves nuclear division and cytoplasmic division  Prophase two DNA strands are distangled together into rods called sister chromatids  G1 phase inbetween M and S phase  G2 phase inbetween S and M phase  G1 is the start point 1060-1066 The Cell Cycle Control System Triggers the Major Event of Cell Cycle  Cell cycle controls can detect errors and delay the cell cycle  There are check points  Start checkpoint: before S phase ensure environment is favorable  G2/M checkpoint: environment is favorable and DNA is all replicated  Metaphase to Anaphase: chromosomes are attached properly to spindles The Cell Cycle Control System Depends on Cyclically Activated Cyclin-Dependent Protein Kinases (CDK)  CDK are involved within cell control  Cdk require cyclin to function properly  G1S cyclin: activates Cdk in the late G1 cycle  S-cyclin: binds to Cdk after the start cycle  M-cyclin: activates cdks before mitosis begins  Cdk needs to be phosphorylated to function properly Inhibitory Phosphorylation and Cdk Inhibitory Proteins (CKIs) Can Suppress Cdk Activity  Wee1 can inhibit activity by adding an i
More Less
Unlock Document

Only 80% of the first page are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

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