When more than one sperm establish contact and penetrate into the egg, then it is called
Monospermy
Polyspermy
$(a)$ and $(b)$ both
None of these
It's Obvious
The yolk plug is a structure in gastrula which is formed by the protrusion of
The extra-embryonic membranes of the mammalian embryo are derived from
Which of the following is an embryonic connective tissue
Gonads are derived from embryonic
During embryonic development the establishment of polarity along anterior / posterior, dorsa l/ ventral or medial / lateral axis is called
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