Botany - Sexual Reproduction in Flowering Plants Question with Solution | TestHub
BotanySexual Reproduction in Flowering PlantsPre-fertilisation Structures and EventsEasy2 minPYQ_2020
BotanyEasysingle choice
When the pollen tube enters the embryo sac, which of the following cell usually gets burst on its entry:
Options:
Answer:
D
Solution:
Pollen tube can enter ovule through micropyle, chalaza and integuments, but it enters embryo sac always through micropylar end in one of the two synergid. Pollen tube always enters in degenerating synergid. Filliform apparatus of synergid secretes chemotactic substance which attracts pollen tube towards embryo sac.
Stream:NTA_ABHYAS_NEETSubject:BotanyTopic:Sexual Reproduction in Flowering PlantsSubtopic:Pre-fertilisation Structures and Events
⏱ 2mℹ️ Source: PYQ_2020
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