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

How does the inflammation mechanism work, Q. How does the inflammation mech...

Q. How does the inflammation mechanism work? When some tissue injury other vasoactive and occurs histamine substances (called mediators of inflammation) are released, they caus

Define limitations for standard or total plate counts method, Define Limita...

Define Limitations for Standard or Total Plate Counts Method? This method has certain limitations - 1. Microbial count depends on the type of media, incubation temperature,

Discuss haematoxylin and its subtypes in detail, Question 1 Discuss how yo...

Question 1 Discuss how you would perform mounting of stained sections. List commonly used mounting media in histopathology laboratory. Add a note on advantages and disadvantages o

Two things that enter the cell for cellular respiration, What are two thing...

What are two things that enter the cell for cellular respiration? Carbohydrate molecules and oxygen enter the cell during cellular respiration.

Explain basic stains (cationic) - types of stains, Explain Basic Stains (Ca...

Explain Basic Stains (Cationic) - Types of Stains? These are chloride or sulfate salts of coloured bases which on ionization give positively charged chromogen. As such, these h

State the term - functional neuroanatomy, State the term - Functional neuro...

State the term - Functional neuroanatomy Functional neuroanatomy focuses on the study of anatomy using psychological measures. One application of this kind of research is to he

Explains the definition of semi-conservative, Meselson and Stahl demonstrat...

Meselson and Stahl demonstrated that DNA replication is a semi-conservative process. Which of the following best explains the definition of "semi-conservative"? A. The two stra

Explain increased fibrinogen levels-thrombogenic factors, Explain Increased...

Explain Increased Fibrinogen Levels and Other Thrombogenic Factors ? Thsombogenesis is an important component in the pathological process of atherosclerosis and so it is not s

Response to cold - responses of plants to stress, Response to Cold - Respon...

Response to Cold - Responses of Plants to Stress Let us first see what happen to a plant when it is exposed to a cold climate with temperatures below 0°C. If the temperature i

Are environmental phenotypical changes transmitted offspring, Are environme...

Are environmental phenotypical changes transmitted to the offspring? Changes caused on the phenotypes by the environment are not transmitted to the offspring unless their prima

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