Question

77.
When an organism remains unstained against background then that stain
is known as
(A) Indirect staining
(B) Negative staining
(C) Capsule staining
(D) Polychromatic staining​

Answer 1

Answer:

Negative staining is the correct ans.

Answer 2

The correct answer is Indirect staining or Negative staining.

• The bacteria are coloured while the background is left white in contact staining, but the background is coloured while the bacteria are left white in indirect staining.
• Negative staining is also known as background staining or indirect staining.
• It does not stain the bacterial cells directly; rather, it does it indirectly by colouring the background, making the cells stand out more.