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Why meiosis-I and meiosis-Il show unequa...

Why meiosis-I and meiosis-Il show unequal division of cytoplasm in oogenesis?

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### Step-by-Step Solution: 1. **Understanding Oogenesis**: Oogenesis is the process of egg (ovum) formation in females. It involves meiosis, which is a type of cell division that reduces the chromosome number by half. 2. **Meiosis I in Oogenesis**: During meiosis I, the primary oocyte divides into two cells: one large secondary oocyte and one smaller polar body. The polar body is a byproduct that typically does not develop into an egg. 3. **Unequal Cytoplasmic Division in Meiosis I**: The reason for this unequal division is that the larger secondary oocyte needs to receive the majority of the cytoplasm. This is crucial because the egg must contain sufficient nutrients and organelles to support the early stages of development after fertilization. ...
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Knowledge Check

  • The longest phase of meiosis-I is:

    A
    metaphase I
    B
    prophase I
    C
    anaphase I
    D
    telophase I

  • In meiosis I at equator, which of the following is found?

    A
    bivalent
    B
    univalents
    C
    chromatids separate
    D
    none of these

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