science
Grade-10
Easy

Question

What is the evolutionary purpose of cells that undergo crossing over?

  1. Produce genetically identical gametes 

  2. Increase genetic diversity

  3. To prevent mutations 

  4. Keep the redundancy of the cell high

hintHint:

Crossing over alters the genes which is the reason why we don't look exactly the same as our parents.

The correct answer is:

Increase genetic diversity


    • Crossover is the process that takes place between homologous chromosomes to increase genetic diversity.
    • In a crossover, part of one chromosome is exchanged for another. The result is a hybrid chromosome with a unique pattern of genetic material.
    • Gametes acquire the ability to be genetically distinct from neighboring gametes after crossover occurs. This allows for genetic diversity that helps cells participate in the survival of the fittest and evolution.

    Related Questions to study

    Grade-10
    science

    When does chromosomal crossover occur?

    When does chromosomal crossover occur?

    scienceGrade-10
    Grade-10
    science

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

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

    scienceGrade-10
    Grade-10
    science

    Which of the following does not cause variation?

    Which of the following does not cause variation?

    scienceGrade-10
    parallel
    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
    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
    parallel
    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
    Grade-10
    science

    The following image shows the mechanism of _______ mutation.

    The following image shows the mechanism of _______ mutation.

    scienceGrade-10
    parallel
    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
    Grade-10
    science

    Down’s syndrome is an example of:

    Down’s syndrome is an example of:

    scienceGrade-10
    parallel
    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
    Grade-10
    science

    Mitosis is also known as _________________.

    Mitosis is also known as _________________.

    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.