Human Reproduction

Human Reproduction

Easy Questions

Advanced Zoology

Animal Kingdom
Structural Organisation in Animals
Digestion and Absorption
Breathing and Exchange of Gases
Body Fluids and Circulation
Excretory Products and their Elimination
Locomotion and Movement
Neural Control and Coordination
Chemical Coordination and Integration
Human Reproduction
Human Health and Disease
Biotechnology Principles and Processes
Biomolecules (Zoology)
Evolution (Zoology)
Biotechnology and its Applications
Reproductive Health
  1. What happens during fertilisation in humans after many sperms reach close to the ovum?








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    During fertilisation in humans, many sperms reach close to the ovum. As sperm comes in contact with the zona pellucida layer of the ovum it induces changes in the membrane that blocks the entry of additional sperm. The secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida.

    Correct Option: A

    During fertilisation in humans, many sperms reach close to the ovum. As sperm comes in contact with the zona pellucida layer of the ovum it induces changes in the membrane that blocks the entry of additional sperm. The secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida.

  1. About which day in a normal human menstrual cycle does rapid secretion of LH (Popularly called LH-surge) normally occurs?








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    At 14th day of normal human menstrual cycle rapid secretion of LH normally occurs.

    Correct Option: A

    At 14th day of normal human menstrual cycle rapid secretion of LH normally occurs.

  1. The second maturation division of the mammalian ovum occurs








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    In Oogenesis, the second maturation division occurs until after the ovum has been penetrated by a sperm. Oogenesis involves the formation of haploid female gametes, ova from diploid egg mother cells, oogonia of ovary of female organism.

    Correct Option: B

    In Oogenesis, the second maturation division occurs until after the ovum has been penetrated by a sperm. Oogenesis involves the formation of haploid female gametes, ova from diploid egg mother cells, oogonia of ovary of female organism.

  1. Which one of the following statements about human sperm is correct?








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    Acrosome a small pointed structure at the tip of nucleus. It breaks down just before fertilization, releasing hydrolytic enzymes that assist penetration between follicle cells that surrounds the ovum, thus facilitating fertilization.

    Correct Option: B

    Acrosome a small pointed structure at the tip of nucleus. It breaks down just before fertilization, releasing hydrolytic enzymes that assist penetration between follicle cells that surrounds the ovum, thus facilitating fertilization.

  1. Which one of the following is the correct matching of the events occurring during menstrual cycle?








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    The corpus luteum is essential for establishing and maintaining pregnancy in females. In the ovary, the corpus luteum secretes estrogens and progesterone, which are steroid hormones responsible for the thickening of the endometrium and its development and maintenance, respectively.

    Correct Option: B

    The corpus luteum is essential for establishing and maintaining pregnancy in females. In the ovary, the corpus luteum secretes estrogens and progesterone, which are steroid hormones responsible for the thickening of the endometrium and its development and maintenance, respectively.