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

What happens within the cell in the first interface period, What are the ev...

What are the events that mark the beginning and the end of the first interphase period? What happens within the cell in this period? The first interphase period is the G1. It s

Define fluorides metabolism, Define fluorides Metabolism? Soluble fluor...

Define fluorides Metabolism? Soluble fluorides, even at high intake levels are almost completely absorbed from gastrointestinal tract. These include aqueous solutions of fluori

Explain about the toxicity of pyridoxine, Explain about the Toxicity of pyr...

Explain about the Toxicity of pyridoxine? Though toxicity related to pyridoxine intake are rare, but use of high doses of pyridoxine for the treatment of pre-menstrual syndrom

Therophytes - classes of life form, Therophytes - Classes of Life Form ...

Therophytes - Classes of Life Form These are annual plants of the summer season or of the favourable season. They complete their life cycles in a single favourable season and

Point out research findings related to cancer prevention, Point out Researc...

Point out Research Findings Related to Cancer Prevention? In this section we shall discuss some of the research findings related to cancer prevention. Many of the natural, canc

Define role of buffer in electrophoresis, Define Role of Buffer in Electrop...

Define Role of Buffer in Electrophoresis? Buffer ions have a two-fold purpose in electrophoresis, they carry the applied current, and they fix the pH at which electrophoresis i

Correct regarding a buffer, Select all that are true or correct regarding a...

Select all that are true or correct regarding a buffer: alternately donating and accepting ions a set of chemicals that work together to resist pH change often a weak acid or base

Assessment of iron status - haemoglobin and haematocrit, Define Assessment ...

Define Assessment of iron status - Haemoglobin and Haematocrit? In the final stages of iron deficiency, anaemia occurs. Haemoglobin and Haematocrit levels indicate prevalence 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