Study the figure given below and answer the questions that follow.
(i) Name the stage of human embryo the figure represents.
(ii) Identify ‘A’ in the figure and mention its function.
(iii) Mention the fate of the inner cell mass after implantation in the uterus.
(iv) Where are the stem cells located in this embryo?
(i) Blastocyst.
(ii) ‘A ’ is trophoblast. The trophoblast layer gets attached to endometrium and later forms chorionic villi.
(iii) The inner cell mass gets differentiated into an embryo.
(iv) Inner cell mass.