Botany - Sexual Reproduction in Flowering Plants Question with Solution | TestHub

BotanySexual Reproduction in Flowering PlantsPre-fertilisation Structures and EventsEasy2 minPYQ_2020
BotanyEasysingle choice

The arrangement of the nuclei in a normal embryo sac in the dicot plants

Options:

Answer:
A
Solution:

The embryo sac is the mature female gametophyte of the angiosperm which is a 7 celled 8 nuclei structure. In it, at the chalazal end there are cells called antipodal cells which act as nutritional centre. Female gamete is surrounded by two synergid cells which help in the fertilization process and present at the micropylar end of the sac. In the centre of the sac polar nuclei is found which is a cell with two nuclei. Thus the nuclei arrangement in the embryo sac is3+2+3.

Stream:NTA_ABHYAS_NEETSubject:BotanyTopic:Sexual Reproduction in Flowering PlantsSubtopic:Pre-fertilisation Structures and Events
⏱ 2mℹ️ Source: PYQ_2020

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