Explain embryonic sac
Explain the embryonic sac? Specify the cells which form the embryonic sac? Specify their ploidies?
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The embryonic sac refers to the female gametophyte of the angiosperms. The embryonic sac generally composed of three cells which remain next to micropyle, two lateral synergids and the central oosphere (egg); the polar nuclei, one binucleated cell, is placed within the central region; three antipodal cells remain in the opposite side to micropyle. As all these cells come through the mitosis from the functional megaspore they are haploid (n).
Systems Development Methodology: It is the formal documentation for the stages of the system development life cycle. It states the precise objectives for each stage and the results needed from a phase prior to the next one can begin. It might comprise
Who were Francis Crik, James Watson and Maurice Wilkins?
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Expand the below abbreviations. CMFRI, CIBA, CIFA
Where in plants is large amount of the IAA found?
Explain the blastopore and archenteron? Which is the stage of embryonic development where these structures are formed? Specify the destinations of archenteron and of blastopore?
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State the autotrophic hypothesis on the origin of life?
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