Home
Class 11
BIOLOGY
Assertion : Synapsis is involved pairing...

Assertion : Synapsis is involved pairing of homologous chromosomes during zygotene of meiosis.
Reason : Crossing over produces variations in the cells .

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 both Assertion is true but Reason are false

D

If both Assertion and Reason are false

Text Solution

AI Generated Solution

Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CELL CYCLE AND CELL DIVISION

    MODERN PUBLICATION|Exercise COMPETITION FILE (OBJECTIVE TYPE QUESTION)(E.ADDITIONAL MULTIPLE CHOICE QUESTION)|30 Videos

  • CELL CYCLE AND CELL DIVISION

    MODERN PUBLICATION|Exercise CHAPTER PRACTICR TEST|16 Videos

  • CELL CYCLE AND CELL DIVISION

    MODERN PUBLICATION|Exercise COMPETITION FILE (OBJECTIVE TYPE QUESTION)(C.MATCHING TYPE QUESTIONS)|1 Videos

  • CELL : THE UNIT OF LIFE

    MODERN PUBLICATION|Exercise Chapter Practice Test (Section-E)|1 Videos

  • CHEMICAL COORDINATION AND INTEGRATION

    MODERN PUBLICATION|Exercise Chapter Practice Test|16 Videos

Similar Questions

Explore conceptually related problems

…………..is the pairing of homologous chromosomes during zygotene

Disjunction is the act of pairing of homologous chromosomes during Anaphase.

Knowledge Check

  • Pairing of homologous chromosomes in zygotene is

    A
    Synapse
    B
    Synapsis
    C
    Crossing over
    D
    Terminalisation

  • Pairing of homologous chromosomes occurs during

    A
    Leptotene
    B
    Zygotene
    C
    Pachytene
    D
    Diplotene

  • Assertion.Crossing over occurs during the pachytene stage of meiosis-I Reason.Crossing over introduces genetic variation in the cells.

    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

    • Similar Questions

    Explore conceptually related problems

    Pairing of homologous chromosomes is called synapsis/desynapsis.

    [A] : Synapsis occurs in zygotene stage . [R] : Pairing of homologous chromosomes is known as synapsis .

    Given diagram shows a pair of homologous chromosomes during meiosis Maximum crossing over will occur between genes

    When does pairing/synapsis of homologous chromosomes (bivalnt formation) occur in meiosis (

    Separation of the homologous chromosome of a pair occurs during

    Home
    Profile