The yolk plug of gastrula represents in the later stage its
Anterior end
Posterior end
Dorsal side
Ventral side
The placental barrier between the maternal and foetal blood is minimum in
Which type of stimulus is used to achieve parthenogenic development
Each seminiferous tubule is lined on its inside by two types of cells $A$ and $B$. Which of the following options is correct, w.r.t. the type of cell and its function?
$A$ | $B$ |
The term blastocyst is applied to the blastula of which one of the following
Both corpus luteum and macula lutea are