1. Tardigrade
  2. Question
  3. Biology
  4. Assertion Only a single functional female gamete is formed from each primary oocyte cell. Reason Meiosis in each primary as oocyte gives rise to only one cell, which function ovum.

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Q. Assertion Only a single functional female gamete is formed from each primary oocyte cell.
Reason Meiosis in each primary as oocyte gives rise to only one cell, which function ovum.

AIIMSAIIMS 2012

Solution:

Secondary oocyte again divides by second meiotic division and again give rise to two unequal sized cell. Larger of these two is known ovum (functional female gamete) and smaller one is called second polar body. Sometimes first polar body also divides simultaneously with secondary oocyte and give rise to two polar bodies. Thus in a complete oogenesis three polar bodies and one functional female gamete or ovum through a meiotic division is formed.