A phenomenon of embryonic induction was first described in amphibia by
A) Aristotle
B) Spemann
C) Von Baer
D) Spallanzani
Answers
A phenomenon of embryonic induction was first described in Amphibia by
B) Spemann
Embryonic induction : The Organizer in an embryo , on being transplanted into a second embryo , organized and induced secondary embryonic primordia. So primordial cells developed into a tissue in its early stage. Also the organizer centers are able to produced other parts of second Embryo.
Hans Spemann is a German biology specialist or embryologist. He was did studies in transplantation. He introduced the “Organizer” concept in transplantation. He worked on grafting fields of cells from an embryo into another. His works enabled medical scientists and physiologists understand the process by which various organisms grow and develop. The “Organizer” region of embryo in the gastrula stage was identified. That organizer region causes the development of remaining parts of the embryo.
He was the first man to discover the Embryonic induction. He was given the Nobel prize in Medicine in 1935.
b is correct answer
A phenomenon of embryonic induction was first described in amphibia by spemann