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Question
The phenomenon of embryo directly developing from a cell of embryo sac other than egg is?
The phenomenon of embryo directly developing from a cell of embryo sac other than egg is?
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Solution
The correct option is C Apogamy
Apospory is the development of gametophyte from the cells of
the sporophyte, but without the formation of spores.
Apogamy is the development of sporophyte from the cells of
embryo sac gametophyte other than the oosphere but without the fusion of gametes.
In diplospory, the unreduced embryo sac is derived
from the megaspore mother cell. It may be either directly by mitotic division
or by aborted meiotic events.
Parthenogenesis is the formation of an embryo from the
unfertilized egg means female gamete.
Therefore, the development of an embryo from the cell of
embryo sac other than the egg is an apogamy.
So, the correct answer is C.
Apospory is the development of gametophyte from the cells of the sporophyte, but without the formation of spores.
Apogamy is the development of sporophyte from the cells of embryo sac gametophyte other than the oosphere but without the fusion of gametes.
In diplospory, the unreduced embryo sac is derived from the megaspore mother cell. It may be either directly by mitotic division or by aborted meiotic events.
Parthenogenesis is the formation of an embryo from the unfertilized egg means female gamete.
Therefore, the development of an embryo from the cell of embryo sac other than the egg is an apogamy.
So, the correct answer is C.
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