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Human Reproduction

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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. Extrusion of second polar body from egg nucleus occurs
    1. after entry of sperm before completion of fertilization
    2. after completion of fertilization
    3. before entry of sperm
    4. without any relation of sperm entry
Correct Option: A

The entry of sperm stimulate the secondary oocyte to resume and complete the suspended meiosis II. This produces a haploid mature ovum and a second polar body. The second polar body and sperm tail immediately degenerate.


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