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A human cell cycle lasts approximately:

Option: 1

12 hours
 


Option: 2

06 hours


Option: 3

01 hours

 


Option: 4

24 hours


Answers (1)

best_answer

The cell cycle is the set of changes that take place in a newly created cell. It is the process by which a cell grows and divides to generate two daughter cells.

The cell cycle is divided into two stages: interphase and M phase.

The M Phase is the stage during which actual cell division or mitosis occurs. It is a brief dividing period.

The phase between two successive M phases is represented by interphase. It is a protracted period of non-dividing growth.

Interphase is separated into four stages: Gap 1 (G1), S (synthesis) phase, Gap 2 phase, and Gap 3 phase (G2).

G1 Phase - The G1 phase of the cell cycle lasts roughly 11-12 hours in a human cell.

The cell is metabolically active and expands continually during the G1 phase, but it does not duplicate its DNA.

S Phase - The S phase of the cell cycle lasts around 8 hours in a human cell.

The S or synthesis phase is the time when DNA synthesis or replication occurs.

G2 Phase - The G2 phase of the cell cycle lasts around 4 hours.

Proteins are generated in preparation for mitosis during the G2 phase, while cell development continues.

Phase M

In a human cell, the M phase of the cell cycle lasts roughly 1 hour.

Cell division occurs during this stage of the cell cycle.

A human cell's cell cycle, which consists of the Interphase and M phases, lasts 24 hours.

Hence, option 4 is the correct answer. 

Posted by

rishi.raj

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