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Virty [35]
3 years ago
9

The combination of mitotic cyclin with CDK signals the __________.

Biology
1 answer:
Masteriza [31]3 years ago
8 0

Answer:

The correct answer is beginning of cell mitosis.

Explanation:

Cyclins are cell cycle regulatory protein which regulates the catalytic activity of cyclin dependent protein kinase or CDK.From the name cyclin dependent protein kinase it can be concluded that CDK helps in the phosphorylation of key proteins of cell cycle.

  The combination of cyclin with CDK helps in the progression of cell from one phase to another.

  Such as cyclin A CDK 2 helps also called G1 cyclin CDK helps in progression of cell from G1 to S phase whereas Cyclin B CDK 1 or M cyclin CDK helps in beginning of mitosis phase or M phase of the regulated cell.

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3 years ago
In order for transcription to happen, DNA must
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3 years ago
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People who have Tay-Sachs disease cannot metabolize some lipids effectively. Tay-Sachs is a recessive disorder. A student used a
Yuliya22 [10]

Answer:

The parents must be Tt, Tt

Explanation:

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     T      t

T    TT   Tt

t     Tt     tt

We can see that the offspring will have the Tt genotype in two cases, the TT genotype in one case, and the tt genotype in one case, as well. Now we need to do some basic math. Two out of four is 50% (Tt - 50%), and one out of four is 25% (TT - 25%, tt - 25%).

This means that the parents must be Tt, Tt.

6 0
2 years ago
Which of the atoms below has the lowest atomic mass?​
Marizza181 [45]

Answer:

C

Explanation:

6 0
3 years ago
Neurons have special proteins in the cell membranes that control the flow of charged ions. Are these proteins most likely produc
Zielflug [23.3K]

The ribosomes on the rough endoplasmic reticulum (RER) most likely produces neuronal special proteins.

Explanation:

Conduction of electrical impulses by action potentials of neurons takes place through controlled flow of charged ions through neuronal membranes. This ion transfer is controlled by specialized neuronal channel proteins which are present in the neuronal cell membrane.  

These channel proteins allow for hydrophillic passage of ions and water molecules across the neuronal membranes.  

Ribosomes that are attached to the RER are involved in protein synthesis. They carry the code for proteins carried by the mRNA and translate into respective protein.

The RER along with some free ribosomes cluster together as Nissl bodies and are mainly involved in neuronal specialized proteins.

3 0
2 years ago
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