A) egg, antipodal, endosperm
B) nucleus, endosperm, egg .
C) antipodal, zygote, endosperm
D) endosperm; nucleus, egg
Correct Answer: C
Solution :
In angiosperms the functional megaspore is haploid Which undergoes mitotic division and form 7 celled 8 nucleate embryo sac. Therefore each nucleus of embryo sac is haploid. At the time of fertilization one male gamete fused with egg nucleus to form zygote (2n), whereas the second male gamete fuses with two polar nucleus (central cell) to form endosperm \[(3n).\] This type of fertilization is called double fertilization. Double fertilization is unique in angiosperms and discovered by Nawaschin (1898).
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