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. Middle piece of mammalian sperm possesses








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    Sperm has:
    (i) head in which acrosome & nucleus are present
    (ii) middle piece in which it contains many mitochondria
    (iii) A long & highly motile tail. (A short neck is also present between middle piece & head which has centrioles and may sometimes regarded as a part of middle piece)

    Correct Option: A

    Sperm has:
    (i) head in which acrosome & nucleus are present
    (ii) middle piece in which it contains many mitochondria
    (iii) A long & highly motile tail. (A short neck is also present between middle piece & head which has centrioles and may sometimes regarded as a part of middle piece)

  1. How many sperms are formed from a secondary spermatocyte?








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    Primary spermatocyte (46) divides through meiosis to give two secondary spermatocytes (23). Each secondary spermatocyte divides through mitosis giving rise to two spermatids (23) which on spermeogenesis mature as sperms.

    Correct Option: C

    Primary spermatocyte (46) divides through meiosis to give two secondary spermatocytes (23). Each secondary spermatocyte divides through mitosis giving rise to two spermatids (23) which on spermeogenesis mature as sperms.