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

Determine the factors affecting fertilizer requirements, Factors Affecting ...

Factors Affecting Fertilizer Requirements   The rapid increase in the use of fertilizers is based on the fact that large profits are obtained from the money invested in them. The

Why is the occurrence of eyelids in amphibians, Why is the occurrence of ey...

Why is the occurrence of eyelids in amphibians in comparison to their absence in fishes and adaptation to terrestrial life? Eyelids associated to lacrimal glands protect and ke

What are the major morphological features of birds, Q What are the major mo...

Q What are the major morphological features of birds? Birds are animals that present aerodynamic bodies covered with feathers, pneumatic bones, anterior limbs transformed into

Gene mutatiorns, Gene or point mutations occur when the DNA sequence of a g...

Gene or point mutations occur when the DNA sequence of a gene is altered and the new nucleotide sequence is passed on to the offspring. This occurs either due to addition or deleti

Extractive use of biodiversity, Q. Extractive use of biodiversity? This...

Q. Extractive use of biodiversity? This includes direct use such as harvesting of wild plant species for use as food, fuel, fodder, fibre, shelter or medicine and hunting anima

What is the route of the ingested food, What is the route of the ingested f...

What is the route of the ingested food from swallowing until the duodenum? Unless reaching the duodenum the food enters the mouth, passes the pharynx, goes down the esophagus a

Explain about the forces acting on a gravity retaining wall, Explain about ...

Explain about the forces acting on a gravity retaining wall. Forces Acting on a Gravity Retaining Wall: In a general way the forces that act on a gravity retaining wall. The

What is meant by vaso-dilation, a) What is meant by 'vaso-dilation'? ...

a) What is meant by 'vaso-dilation'? b) What are the effects of vaso-dilation in the skin?   (a) Vaso-dilation is an enhance in diameter of small arterioles and

Vertebrates, characterstics and classification of vertebrates

characterstics and classification of vertebrates

What is expression of the dominant phenotype, If we make a cross of two phe...

If we make a cross of two phenotypically WT zebrafish, and we get the following results, what can we say about the genotype of those two WT looking parents from the following resul

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