Throat swab is kept in ?: (A) Plastic jar, (B) Test tube, (C) Petri dish, (D) None
Answer is B. Ans. is 'b' i.e., Test tube A throat - swab consists of an orange - stick with cotton wool wrapped round one end and placed in a test tube passing through a plug of non-absorbent cotton wool, with the free end of the stick protruding.The tubes with the swabs are kept in oven for sterilization.