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Tamil Nadu Board of Secondary EducationHSC Science Class 12

Do you think parthenocarpy and apomixis are different process. Justify? - Botany

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Question

Do you think parthenocarpy and apomixis are different process? Justify?

Short Note

Solution

  1. The formation of fruit from the ovary without the act of fertilization is called parthenocarpy.
  2. A method of reproduction that does not involve the union of male-female gametes is called apomixis. Thus apomixis and parthenocarpy are asexual modes of reproduction.
  3. But Apomixis refers to the formation of seeds without fertilization. Whereas parthenocarpy refers to the formation of fruits without fertilization.
    In Apomixis, the megaspore mother cell does not undergo meiosis, or the cell from the nucellus develops into the embryo.
    In parthenocarpy, the ovary becomes a fruit without fertilization and thus fruits are seedless.
    Thus Apomixis and parthenocarpy are different processes.
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Chapter 1: Asexual and Sexual Reproduction in Plants - Evaluation [Page 34]

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Samacheer Kalvi Botany [English] Class 12 TN Board
Chapter 1 Asexual and Sexual Reproduction in Plants
Evaluation | Q 47 | Page 34
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