Biology - Human Reproduction Question with Solution | TestHub
BiologyHuman ReproductionFertilisation and Embryonic DevelopmentMedium2 minPYQ_2026
BiologyMediumsingle choice
Yolk sac formed during gastrulation is surrounded by __________.
Options:
Answer:
B
Solution:
During gastrulation, the hypoblast cells (which are extraembryonic endoderm cells) migrate and spread along the inner surface of the trophoblast to line the blastocoel. This newly formed cavity is called the primary yolk sac. Therefore, the yolk sac is primarily lined and surrounded by endoderm cells.
Answer: endoderm cells
Stream:MHT_CET_MEDICALSubject:BiologyTopic:Human ReproductionSubtopic:Fertilisation and Embryonic Development
⏱ 2mℹ️ Source: PYQ_2026
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