alleryThe triploid endosperm formed in angiosperms is the result of fusion of
Atwo sperms with one polar nucleus
Btwo eggs with one sperm
Ctwo antipodals
Done sperm with two polar nuclei
Answer & Solution
Correct answer: D. one sperm with two polar nuclei
1. The second sperm of the angiosperm pollen tube fuses with the central cell.
2. The central cell already contains two polar nuclei; this gives a 3n (triploid) nucleus.
3. This triple fusion produces the nutritive endosperm tissue of the seed.
_Source: Maharashtra Balbharati Std XII Biology, Ch 1 "Reproduction in Lower and Higher Plants" §1.6_
Keep practising Unit 5D: Organismal Reproduction & Life Cycles
Browse all Unit 5D: Organismal Reproduction & Life Cycles questions for AP Biology, or explore more Biology topics.
Related questions
Asexual reproduction differs from sexual reproduction because asexual reproductionInsect-pollinated flowers usually attract insects withIn wind-pollinated flowers, pollen grains are usuallyOnion is propagated vegetatively byBryophyllum reproduces vegetatively from itsPotato plants are propagated commercially byReproduction by formation of spores is seen inThe ovary of a flowering plant develops after fertilisation into