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yKpoI14uk [10]
3 years ago
9

Cyclin dependent kinases (Cdk) are proteins that work with cyclin regulatory proteins. The cyclins are associated with different

checkpoints of the cell cycle. Different phases of the cell cycle experience activation and/or deactivation of specific cyclin-Cdk complexes. CyclinB-CDK1 activity is specific to the G2/M checkpoint. Referring to the graph, what is the relationship between the concentration of cyclin B and Cdk1 activity?
Biology
2 answers:
MA_775_DIABLO [31]3 years ago
7 0

Answer:

the usatestprep is A) Mitosis

Explanation:

bogdanovich [222]3 years ago
3 0

Answer:

Cyclin dependent kinase 1 or CDK 1 is a catalytic protein whose action is regulated by cyclin B.

Explanation:

CyclinB-CDK 1 complex is also termed as maturation promoting factor that helps in the entry of the cell into the M phase.The concentration of Cyclin B -CDK1 rises by various process such as dephosphorylation and falls by the degradation of cyclin B.

       The cyclinB-CDK 1 is inactivated by phosphorylation of at tyr 15 residue.cyclinB-CDK1 interacts with various proteins such as survivin,which is essential for spindle formation that in turn regulate the cell viability.

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Explanation:

Phloem cells are conducting vessels that are found in vascular plant. They are used in the transport of photosynthate produce during photosynthesis from the source of production to other parts of the body.

It consist of sieve elements, which are the conducting vessel that aids transport of sugar round the body. They are very active before maturity at mature they are no longer in use.

Companion cells are used in replacement of sieve element at maturity, they function in metabolism together with the sieve tube Translocation is the transport or movement of sugar round the body.

Girdlings is the removal of the bark of a plant this can inhibit active transport of food.

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