Gastrulation is the process which involves the differentiation of the following layers in a vertebrate embryo
Ectoderm and mesoderm
Ectoderm and endoderm
Endoderm and mesoderm
Ectoderm, endoderm and mesoderm
If ovaries of a pregnant mammal are removed
Assertion : In morula stage, cells divide without increase in size.
Reason : Zona pellucida remains undivided till cleavage is complete.
Formation of segmentation cavity shows
What happens during fertilization in humans after many sperms reach close to the ovum?
Syngamy is the process in which