science
Grade-10
Easy

Question

Chromosomal crossover is the natural pairing up and exchanging of genetic material between

  1. Any chromosomes

  2. Homologous chromosomes

  3. Non-homologous chromosomes

  4. Extra-nuclear chromosomes

Hint:

The chromosomes have a similar structures.

The correct answer is:

Homologous chromosomes


    • A chromosomal crossover or crossover is the exchange of genetic material during sexual reproduction between non-sister chromatids of two homologous chromosomes, resulting in a recombinant chromosome.
    • This is one of the final stages of genetic recombination that occurs during the pachytene stage of prophase I of meiosis during a process called a synapse.

    Related Questions to study

    Grade-10
    science

    Which of the following does not cause variation?

    Which of the following does not cause variation?

    scienceGrade-10
    Grade-10
    science

    What is the structural and functional unit of heredity?

    What is the structural and functional unit of heredity?

    scienceGrade-10
    Grade-10
    science

    When does crossing over occur in meiosis?

    When does crossing over occur in meiosis?

    scienceGrade-10
    parallel
    Grade-10
    science

    __________is the degree to which differences are seen in parents and their off springs.

    __________is the degree to which differences are seen in parents and their off springs.

    scienceGrade-10
    Grade-10
    science

    DNA is present in _________ of a cell.

    DNA is present in _________ of a cell.

    scienceGrade-10
    Grade-10
    science

    In sickle cell anemia amino acid______ is formed as a result of point substitution.

    In sickle cell anemia amino acid______ is formed as a result of point substitution.

    scienceGrade-10
    parallel
    Grade-10
    science

    The following image shows the mechanism of _______ mutation.

    The following image shows the mechanism of _______ mutation.

    scienceGrade-10
    Grade-10
    science

    _____________ mutation causes sickle cell anemia.

    _____________ mutation causes sickle cell anemia.

    scienceGrade-10
    Grade-10
    science

    The picture shows which type of chromosomal mutation?

    The picture shows which type of chromosomal mutation?

    scienceGrade-10
    parallel
    Grade-10
    science

    Down’s syndrome is an example of:

    Down’s syndrome is an example of:

    scienceGrade-10
    Grade-10
    science

    ______ mutations originate during meiosis while ______ mutation originates during mitosis.

    ______ mutations originate during meiosis while ______ mutation originates during mitosis.

    scienceGrade-10
    Grade-10
    science

    _____________ is the transfer of characters from parents to offspring.

    _____________ is the transfer of characters from parents to offspring.

    scienceGrade-10
    parallel
    Grade-10
    science

    Mitosis is also known as _________________.

    Mitosis is also known as _________________.

    scienceGrade-10
    Grade-10
    science

    Genetic variation is not caused by:

    Genetic variation is not caused by:

    scienceGrade-10
    Grade-10
    science

    Crossing over occurs in which phase?

    Crossing over occurs in which phase?

    scienceGrade-10
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.