Double fertilization is the fusion of

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(D) Double fertilization was discovered by $S. G. Nawaschin$ $(1898)$ and $Guignard$ in $Lilium$ and $Fritillaria$. Double fertilization is a characte

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One male gamete with egg and other with secondary nucleus

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(D) Double fertilization was discovered by $S. G. Nawaschin$ $(1898)$ and $Guignard$ in $Lilium$ and $Fritillaria$. Double fertilization is a characteristic feature restricted only to angiosperms.When the pollen tube enters the ovule,it releases two male gametes into the embryo sac. These gametes fuse with two different structures in the same female gametophyte:$1.$ Syngamy: Fusion of one male gamete with the egg cell to form a diploid zygote $(2n)$.$2.$ Triple Fusion: Fusion of the second male gamete with the two polar nuclei (or the secondary nucleus) to form the primary endosperm nucleus $(PEN)$,which is triploid $(3n)$.

Similar Questions

Double fertilization involves

In angiosperms, the fusion of a male gamete with the secondary nucleus is considered as "second fertilization" because

The endosperm in angiosperms is formed:

Differentiate between the following:
$(i)$ Red algae and brown algae
$(ii)$ Liverworts and moss
$(iii)$ Homosporous and heterosporous pteridophytes
$(iv)$ Syngamy and triple fusion

Assertion $(A)$: In roses,the endosperm is formed after fertilization.
Reason $(R)$: Double fertilization is observed in angiosperms.

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