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

Ecological evidence of organisms to environment, Q. Ecological Evidence of ...

Q. Ecological Evidence of organisms to environment? Ecology is concerned with organisms in relationships to their environment. These relationships may be classified as biotic,

Phylogeny and evolution, While studying evolution, a student comes across a...

While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade?

Genetics, what is a homologous chromosome

what is a homologous chromosome

Determine the two different alleles, What is meant by saying that in relati...

What is meant by saying that in relation to a given trait conditioned by a gene with two different alleles the gametes are always "pure"? To say that gametes are pure means tha

Main moral problem about the cloning of human individuals, What is the main...

What is the main moral problem about the cloning of human individuals? As well biological perils, a very serious moral problem involves the nucleus transplantation technology c

Carrier protein in a plasma membrane, What is a characteristic feature of a...

What is a characteristic feature of a carrier protein in a plasma membrane? Carrier proteins are globular proteins which are particular it their action and therefore regulate t

Define basic working of the endocrine system, Q. How does the circulatory s...

Q. How does the circulatory system participate in the functioning of the endocrine system? The circulatory system is basic for the functioning of the endocrine system and the b

Explain the process of growth factors, Explain the process by which growth ...

Explain the process by which growth factors promote angiogenesis. Add citation or links.

What are persistent organic pollutants, What are persistent organic polluta...

What are persistent organic pollutants (POPs)? POPs, or persistent organic pollutants, are toxic substances formed from organic compounds. POPs are made in several industrial p

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