Maturation promoting factor, Biology

Assignment Help:

• Cyclins accumulate during the G1, S, and G2 phases of the cell cycle.
• By the G2 checkpoint (the red bar in the figure), enough Cyclin is available to form MPF complexes (aggregations of Cdk and Cyclin) which initiate mitosis.

o MPF apparently functions by phosphorylating key proteins in the mitotic sequence.

• Later in mitosis, MPF switches itself off by initiating a process which leads to the destruction of Cyclin

o Cdk, the non-Cyclin part of MPF, persists in the cell as an inactive form until it associates with new Cyclin molecules synthesized during Interphase of the next round of the cell cycle. 


Related Discussions:- Maturation promoting factor

Cells, describe the cell theory and its exception

describe the cell theory and its exception

Chronic complications of diabetes, Q. Chronic complications of diabetes? ...

Q. Chronic complications of diabetes? These occur gradually when the diabetics do not monitor the blood sugar and they are careless about eating, exercise and the medications a

What is tricuspid atresia: surgery for single ventricle, What is Tricuspid ...

What is Tricuspid Atresia: Surgery for Single Ventricle Physiology In tricuspid atresia, the right atrium fails to open into right ventricle through a right atrioventricular va

Structure and function of lipoproteins, Triacylglycerols, cholesterol and p...

Triacylglycerols, cholesterol and phospholipids are associatively insoluble in aqueous solution. Thus, they are transported around the body in the blood as parts of lipoproteins.

Describe the various types of rna, Describe the various types of RNA? ...

Describe the various types of RNA? Types of RNA :  There are three different types of RNA, all formed by transcription from DNA: (1) Messenger RNA (mRNA) is a single unc

Life, How life exist in earth?

How life exist in earth?

Krebs cycle, Krebs Cycle The acetyl  group  of acetyl   co A  is now co...

Krebs Cycle The acetyl  group  of acetyl   co A  is now completey  degraded  stepwise  into  carbon  and hydrogen atoms  in the mitochondria  by a cyclic  sequence of  eight ma

What is the metagenesis, Q. What is the metagenesis? What are the other nam...

Q. What is the metagenesis? What are the other names of this procedure? Metagenesis is thekind of life cycle in which there are two different forms of individuals of the same s

Muscular tissue, MUSCULA R TISSUE Muscular tissue in general develop...

MUSCULA R TISSUE Muscular tissue in general develops from the mesoderm of the embryo but the muscles of the iris of the eye and myoepithelial cells of the salivary, mammar

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd