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).
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How cellular immune responses occur?
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Expalin the Concept of Decentralization and their advantages and disadvantages ?
Write down the respective functions of proteins, phospholipids and carbohydrates of cell membrane.
What are the three major kinds of passive transport?
Give a brief explanation of the term western blotting.
Explain radial immuno diffusion technique?
Describe some illustrations of nematodes?
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