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In double fertilisation, the second male gamete fuses with:
AThe egg cell (forming the zygote, 2n)
BThe synergids (which then die after the fusion)
CThe two polar nuclei (forming primary endosperm 3n)
DThe antipodal cells (which then degenerate normally)
Answer & Solution
Correct answer: C. The two polar nuclei (forming primary endosperm 3n)
Double fertilisation: 1st male gamete + egg = ZYGOTE (2n, becomes embryo). 2nd male gamete + 2 polar nuclei = PRIMARY ENDOSPERM NUCLEUS (3n, triploid, becomes endosperm).
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