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NemiM [27]
2 years ago
8

During the cell cycle, the cell must pass through several checkpoints that confirm that the cell is ready to progress to the nex

t phase of the cycle. If the requirements of one phase have not been met, the cell cannot proceed to the next phase. These checkpoints help control the rate of cell division. If a mutation disables one of these checkpoints, what is most likely to happen?
a. Cells proceed through phases of the cell cycle in the wrong order
b. Cells remain in one phase of the cell cycle for the rest of their existence
c. The cell begins dividing too often, forming a tumor
d. Cells divide slowly, reducing organ function.
Biology
2 answers:
aniked [119]2 years ago
6 0

Answer:

d is the correct answer

Explanation:

Ksenya-84 [330]2 years ago
5 0

Answer:

The answer is C

Explanation:

The cell begins dividing too often, forming a tumor. Since there is no check due to mutation, cell growth and death is not controlled hence the cells divided too often and as they like leading to tumour development and cancer.

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Cyclopropane is a highly strained molecule because the conformations of the cycloalkanes are influenced by the torsional, angle strain, and steric strain. Cycloalkanes, which comprises more than three atoms of carbons are not flat molecules, they are puckered.  

The three and four-membered ring components exhibit angle strain and minimize the internal bond angles. The angle strain is generated when the bond angles deviate from the optimum tetrahedral angle, that is, 109.5 degree.  

Torsional strain is a resultant of eclipsing interactions, and steric strain is attained when the atoms are forced too close to each other.  


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Answer:

The correct order would be:

A vaccine introduces a weakened flu virus into the body.

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The immune system identifies antigens on the weakened flu virus.

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Antibodies are produced, which bind to the weakened flu virus and signal immune cells to destroy it.

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The actual flu virus enters the body, and lymphocytes recognize the antigens.

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Antibodies are quickly produced and allow the body to fight off the infection.

Vaccination or immunization is the process which helps in developing the immunity (adaptive) against a particular pathogen or microorganism.

It includes the administration of antigen, weakened or heat-killed microorganism (such as flu virus) into the patients body. Body's immune system produces naive B and T cells to eliminate the antigen.

This encounter enables the immune system to produce memory B and T cells against that particular pathogen.

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Answer:

B

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Answer:

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