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Assertion: In mitosis, two identical cel...

Assertion: In mitosis, two identical cells are produced from a single cell and karyokinesis is followed by cytokinesis.
Reason- Cytokineis is of two types.

A

Both assertion and reason are true and the reason is a correct explanation of assertion.

B

Both assertion and reaso are true, but the reason is not the correct explanation of the assertion.

C

Assertion is true, but reason is false

D

Assertion is false, but reason is true

Text Solution

Verified by Experts

The correct Answer is:
B
Mitosis is the process by which a cell nucleus divides (karyokinesis) to produce two daughter nuclei containing identical sets of chromosomes to the parent cell. It is usually followed immediately by the division of cytoplasm (cytokinesis) to form two daughter cells.
This process is known as cell division. cytokinesis is of two types i.e., by cell-furrow method (e.g. animals) and cell-plate method (e.g. plants).
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Karyokinesis and cytokinesis make up the "________" phase of the cell cycle.

Assertion: Karyokinesis follows cytokinesis. Reason: Karyokinesis is the division of cytoplasm into two daughter cells.

Knowledge Check

  • Assertion In mitosis, two identical cells are produced from a single cell and karyokinesis is followed by cytokinesis. Reason Cytokinesis is of two types, i.e. by cell-furrow method and cell plate method.

    A
    Both A and R are true and R is the correct explanation of A
    B
    Both A and R are true, but R is not the correct explanation of A
    C
    A is true, but R is false
    D
    A and R are false

  • In each of the following questions, a statement of Assertion is given followed by corresponding statement of Reason of the statement, mark the correct alternative as directed below. Assertion : In mitosis, two identical cells are produced from a single cell, and karyokinesis is followed by cytokinesis. Reason: Cytokinesis is of two types.

    A
    If both Assertion and Reason are true, and Reason is the correct explanation of Assertion.
    B
    If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
    C
    If Assertion is true, but Reason is false.
    D
    If both Assertion and Reason are false.

  • $ Karyokinesis is followed by cytokinesis. ! Two daughter nuclei are formed after telophase.

    A
    If both As and R are correct and R is correct explanation of As
    B
    If both As and R are correct but R is not correct explanation of As
    C
    If As is correct, R is wrong
    D
    If both As and R are wrong.

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    Assertion: Endomitosis does not cause karyokinesis or cytokinesis. Reason : In endomitosis, mitosis occurs within nucleus.

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