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1.Sexual Reproduction in Flowering Plants
medium
Perisperm differs from endosperm in
A
being a diploid tissue
B
its formation by fusion of secondary nucleus with several sperms
C
being a haploid tissue
D
having no reserve food.
(NEET-2013)
Solution
(a) : Both perisperm and endosperm are nutritive layers. Perisperm is residual persistent nucellus of seed prior to fertilization while endosperm develops when one of the sperm cells fuses with two haploid polar nuclei. Thus perisperm is diploid while endosperm is a triploid tissue.
Standard 12
Biology
