Formation of gametophyte directly from sporophyte without meiosis is
A. Apospory
B. Apogamy
C. Parthenogenesis
D. Amphimixis
Answer: Option A
Solution(By Examveda Team)
The formation of gametophyte directly from sporophyte without meiosis is Apospory.Apospory is the development of 2n gametophytes, without meiosis and spores, from vegetative, or nonreproductive, cells of the sporophyte.
It develops in pteridophytes that have a mineral nutrition shortage due to insufficient minerals in the soil.
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Which photosynthetic bacteria possess both PS I and PS II?
A. Purple sulphur bacteria
B. Cyanobacteria
C. Purple nonsulphur bacteria
D. Green sulphur bacteria
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