Which cell of the gametophyte of a normal angiosperm ( $C a p s e l l a$ ) is diploid at the time of fertilization?

Prothallial cell/vegetative cell

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Antiprodal cell and synergids

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Secondary nucleus

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Generative cell

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Solution

The correct option is C Secondary nucleus
In angiosperms, double fertilization is a specific characteristic. In this process, haploid male gametes, two in number will fuse with egg cell (haploid) and secondary polar nucleus (diploid). Secondary polar diploid nuclei will fuse with the male gamete and form a triploid endosperm. Capsella is a prominent example of angiosperms which has secondary polar nuclei, diploid in nature.

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Which cell of the gametophyte of a normal angiosperm (Capsella) is diploid at the time of fertilization?

Which cell of the gametophyte of a normal angiosperm ( $C a p s e l l a$ ) is diploid at the time of fertilization?