Neural crest cells break off from the ________ and later move to the sides of the developing embryo to form ________
Placodes, sense organs of head
Ectoderm, sense organs of head
Notochord, vertebral column
Neural tube, autonomic ganglia
In vertebrates the nails are formed from
The female structures that corresponds (homologous) to the scrotum of the male are
Endometrium is lining of
Seminiferous tubules develop central lumen after
Which of the following enzyme helps sperm to penetrate zona pellucida?