PRACTICAL

BUCCAL EPITHELIAL CELLS TO OBSERVE BARRBODY

               AIM:  To study barr body in the cheek epithelium.

PROCEDURE:   Scrathed inner lining of buccal cavity with a blunt stick and place the material on a dry clean slide added a drop of neutral red or methylene blue. Place a cover slip and press to cause spreading of cell and observe under the low power magnification and later higher magnification of microscope.

OBSERVATION: Scattered squamous epithelial cells with nuclei can be seen attached to the nuclear envelope in a deeply stained hetero chromatin barrbody. Barrbody is the hetero chromatin of x chromosome of diploid female cell

Submitted by

ANJANA.R.H

ROLL NO:3

NATURAL SCIENCE