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प्रश्न
Explain following term:
Apomixis
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उत्तर
It is the phenomenon of the formation of the embryo(s) through the asexual reproduction method without the formation of gametes and the act of fertilization. Alternatively, it is unusual sexual reproduction where there is no meiosis and syngamy. The embryo develops in the ovule, and the ovule develops to form a seed. In apomixis, when a gametophyte organ or cell produces embryo-like structure without fertilization, it is called apogamy. Similarly, when a diploid sporophyte cell produces a diploid gametophyte without undergoing meiosis, it is called apospory, e.g. Orange, Mango.
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संबंधित प्रश्न
What is apomixis?
Are pollination and fertilization necessary in apomixis?
In ______a diploid sporophyte cell produces a diploid gametophyte without undergoing meiosis.
______ refers to the formation of seeds without fertilization.
Are pollination and fertilization necessary in apomixis? Give reasons.
Assertion: Apomictic embryos are genetically identical to the parent plant.
Reason: Apomixis is the production of seeds without fertilization.
Which of the following defines apomixis correctly?
- Production of the embryo from an unfertilised egg.
- Production of seed without syngamy.
- Production of fruit without fertilisation.
- Production of seed without meiosis.
- Production of seed without mitosis.
Choose the correct options.
Haploid cells belong to ______.
Give significance of apomixis.
What is the importance of apomixis?
