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

Life, How life exist in earth?

How life exist in earth?

Cellular respiration, Cellular respiration Cellular respiration is mor...

Cellular respiration Cellular respiration is more or less a reverse process of photosynthesis. During cellular respiration complex carbon compounds, especially the carbohydrat

Explain cognitive - behavioural approaches, Cognitive - Behavioural Approac...

Cognitive - Behavioural Approaches They includepsychoeducatiorzal and rational-emotive  therapy. The goal is to identify problem behaviour and irrational beliefs and then to de

List the four phases of mitosis, List the four phases of mitosis, and brief...

List the four phases of mitosis, and briefly explain what occurs during each phase. Prophase: the chromatin coils and produces chromosomes, the nucleolus and nuclear envelope d

Why proteins interact with each other inside of a cell, What technique woul...

What technique would you use to see if two proteins interact with each other inside of a cell?

Define the chromosome region, Q. How is the chromosome region where the cen...

Q. How is the chromosome region where the centromere is located called, and how chromosomes classified in the relation to the position of their centromere? The chromosome regio

What is the morphological feature of molluscs, Q What is the morphological ...

Q What is the morphological feature of molluscs after which the phylum is named? The word "mollusc" imply "soft thing". Molluscs have soft bodies and this feature describes the

What is an evolutionary explanatory hypothesis, Q. What is an evolutionary ...

Q. What is an evolutionary explanatory hypothesis for the secretion by the heart of a hormone that regulates the renal function? Which is that hormone? The renal regulator horm

Structures of a flowering plant, Which structures of a flowering plant give...

Which structures of a flowering plant give rise to (a) potatoes, (b) the fleshy scales of an onion?   (a) A potato is a tuber formed at the end of an underground stem (b) O

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