at which devel0ping stage s the yolk plug clearly visible in the frog embryo?

really need answer in the short time

Asked by nurdelight 13 years ago 5/13/2012 8:40 AM

Last updated by anonymous 12 years ago 12/31/2012 9:54 PM

Answered by Dr. John Carmen 12 years ago 12/31/2012 9:54 PM

During the gastrulation stage the yolk plug is visible.