Relative sizes of an egg cell, morula, blastula and gastrula are
Egg cell is largest and morula is smallest
Egg cell is smallest and gastrula is largest
Egg cell is largest and gastrula is smallest
All are of equal size
Number of sperms present in a single ejaculation of semen contains
Immediately after implantation, ectoderm, endoderm and the mesoderm of embryo is formed from
As a result of cleavages, if blastomeres are symmetrically placed around the polar axis the type of cleavage is known as
Gyanogamones are secretions from
In the development of the human body, the ectoderm is responsible for the formation of