PDF Notes: rep

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    What is the role of sexual reproduction in species survival?

    It creates genetic diversity, enhancing adaptability.

    How do asexual and sexual reproduction differ?

    Asexual reproduction produces identical offspring, while sexual reproduction creates variants.

    What structures develop in the androecium?

    Stamens, which are the male reproductive organs.

    What is the function of the stigma in a flower?

    It serves as a landing platform for pollen grains.

    What happens during microsporogenesis?

    Microspore mother cells undergo meiosis to form microspore tetrads.

    What is the significance of pollen grain exine?

    It protects pollen grains and aids in fossil preservation.

    What is the role of the tapetum in microsporangium?

    It nourishes developing pollen grains.

    What defines the female gametophyte in flowering plants?

    It develops from a functional megaspore within the ovule.

    What is the process of megasporogenesis?

    Formation of megaspores from the megaspore mother cell.

    How does the structure of a flower aid in reproduction?

    It facilitates the formation of fruits and seeds through adaptations.

    What are the two main parts of a stamen?

    Filament and anther.

    What is the importance of pollen viability?

    It determines the success of fertilization after pollen release.

    What is the function of the ovary in a flower?

    It houses the ovules and develops into fruit after fertilization.

    What distinguishes monocarpellary from multicarpellary gynoecium?

    Monocarpellary has one pistil, while multicarpellary has multiple.

    What is the role of integuments in ovules?

    They protect the nucellus and embryo sac.

    What happens to the other three megaspores during megasporogenesis?

    They typically degenerate, leaving one functional megaspore.