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

Define about the radiant energy - carcinogenic, Define about the Radiant En...

Define about the Radiant Energy? Radiant Energy: Radiant energy whether in the form of the ultraviolet rays of sunlight or as ionizing electromagnetic and particulate radiation

What is connective tissue proper, What is connective tissue proper? The...

What is connective tissue proper? The name connective tissue proper is used to assign the connective tissue that fills interstitial spaces as opposed to the specialized connect

Deficiency diseases-calcium deficiency (hypocalcicosis), Calcium  deficien...

Calcium  deficiency (hypocalcicosis) Calcium deficiency or hypocalciosis is a sporadic condition occurring in a particular group of animals causing osteodystrophy. Aetiol

What are the catalysts, Q. What are the catalysts? Catalysts are substa...

Q. What are the catalysts? Catalysts are substances that decrease the activation energy of a chemical reaction, facilitating it or making it energetically viable. The catalyst

Excellent identification hypothesis for a plant tissue, What is the most ex...

What is the most excellent identification hypothesis for a plant tissue seen under the microscope having most cells undergoing cell division? The most excellent hypothesis is t

Which statements concerning enzymes is false, Which of the following statem...

Which of the following statements concerning enzymes is false? a. They function as catalysts b. The active site of an enzyme has a shape that is specific for its c. Many e

Explain properties of colloidal systems - electric charge, Electric Charge ...

Electric Charge - Properties of Colloidal Systems Colloidal particles are electrically charged. Some colloidal particles carry a positive charge (+), others a negative charge (

Explain restriction endonucleases are enzymes, Restriction endonucleases ar...

Restriction endonucleases are enzymes which: 1. make cuts at specific positions within the DNA molecule 2. recognize a specific nucleotide sequence for binding of DNA ligase

Character displacement and ecological exclusion, Consider two species of or...

Consider two species of organisms, species A and species B. Species A has a population in a community. Another population species B arrives into the same community, rather suddenly

Functions of lysosomes, FUNCTIONS (1 )      Intracellular digestion -...

FUNCTIONS (1 )      Intracellular digestion - Individual cells may obtain food through phagocytosis. The same is digested with the help of lysosomes. It is of two types:-

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