Advertisements
Advertisements
प्रश्न
Explain following term:
Apomixis
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
What is apomixis?
Are pollination and fertilization necessary in apomixis?
Explain various categories of apomixis.
Identify the CORRECT term which describes the following condition.
In some plants, the female gamete develops into embryo without fertilization.
The phenomenon observed in some plants wherein parts of the sexual apparatus are used for forming embryos without fertilization is called ______.
Are parthenocarpy and apomixis different phenomena? Discuss their benefits.
Apospory is the direct formation of ______.
Haploid cells belong to ______.
Give significance of apomixis.
What is the importance of apomixis?
