Completion of gastrulation is indicated by
Obliteration of blastocoel
Vascular tissue is derived from
Mesoderm
In which of the following animal cleavage divisions are restricted to a small part of cytoplasm & nucleus in animal pole of egg
Chick
In which of the following mosaic cleavage occurs?
Echinococcus granulosus
How many sperms are formed by one primary spermatocyte ?
4