Botany - Sexual Reproduction in Flowering Plants Question with Solution | TestHub
BotanySexual Reproduction in Flowering PlantsPre-fertilisation Structures and EventsEasy2 minPYQ_2020
BotanyEasysingle choice
How many post-meiotic mitotic divisions will be required to produce 100 zygotes in a flowering plants?
Options:
Answer:
C
Solution:
A pollen grain is formed by meiosis in pollen sac. It undergoes two mitotic divisions to form 2 male gametes. A megaspore is formed by meiosis in ovule. It undergoes three nuclear divisions to form embryo sac which has one egg cell. In flowering plants double fertilization occurs. Thus for formation one zygote 5 mitotic divisions are required. Thus for 100 zygotes, 500 mitotic divisions will be required.
Stream:NTA_ABHYAS_NEETSubject:BotanyTopic:Sexual Reproduction in Flowering PlantsSubtopic:Pre-fertilisation Structures and Events
⏱ 2mℹ️ Source: PYQ_2020
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