The phenomenon of fertilization was first perceived by
Weismann
Leeuwenhoek
Robert Hooke
Hertwig
(d)Oscar hertwig $(1875)$ described the fusion of sperm and egg nuclei (fertilization) in sea urchin.
The fluid filled in the blastocoel cavity of blastula is
Cryptorchidism is the condition in man when
Pasteels $(1945)$ described gastrulation takes place in aves by
Why it is scientifically correct to say that sex of the baby is determined by the father and not by the mother?
Among the following who is regarded to be the founder of modern embryology
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