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Assertion.Meiotic division produces four...

Assertion.Meiotic division produces four dissimilar cells
Reason.Synapsis and crossing over in the zygotene and pachytene of meiosis-I prophase

A

If both A and R true and R is the correct explanation of A.

B

If both A and R are true but R is not the correct explanation of A.

C

If A is true but R is false

D

If both A and R are false

Text Solution

Verified by Experts

The correct Answer is:
A
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Explore conceptually related problems

[A]: Meiotic division in meiosis results in reduced number of chromosomes. [R]: Synapses occurs during zygotene of meiosis.

Write true or false for the following. Synapsis takes place in pachytene stage of prophase-I of meiosis.

Knowledge Check

  • Assertion.Meiosis produces four genetically dissimilar cells. Reason.Synapsis,crossing over and disjunction of homologous chromosomes occur in the prophase,of meiosis-I

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

  • Assertion : Meiosis produces four genetically dissimilar cells. Reason : Crossing over or gene exchange takes place in meiosis.

    A
    If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
    B
    If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
    C
    If Assertion is True but the Reason is False.
    D
    If both Assertion & Reason are false.

  • Assertion Meiotic division occurs in reproductive cells. Reason Synapsis occurs during zygotene of meiosis.

    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

    • Similar Questions

    Explore conceptually related problems

    [A] : Meiosis maintains a constant number of chromosomes . [R] : Synapsis and crossing over introduce changes in the DNA .

    Assertion: Meiotic division results in the production of haploid cells. Reason: Synapsis occurs during zygotene of meiosis.

    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 : Meiotic division occurs in reproductive cells. Reason: Synapsis occurs during zygotene of meiosis.

    In meiotic division, crossing over takes place during

    Assertion- Meiosis-II is similar to mitosis. Reason- Meiosis-I cannot occur in haploid cells.

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