Zona pellucida of mammalian egg serves which of the following purpose
Maintains normal cleavage of the egg
Prevents egg fusion
Prevents polyspermy
All the above
It's Obvious
Human placenta is derived from
The cavity of gastrula is called
Drugs such as Thalidomide taken by woman in first trimester of pregnancy cause all the following malformations in the developing embryo, except
By the contraction of spermatic cord the testis of man are not taken to the abdominal cavity. It is due to the following structure
Read the following paragraph with two blanks : Each testis has about $A$ compartments called as testicular lobules. Each lobule contains $B$ highly coiled seminiferous tubules in which the sperms are produced. The correct option for the two blanks is
Confusing about what to choose? Our team will schedule a demo shortly.
