Peptidoglycan in the cell wall of a bacterial cell is determined by ________.
A) a Southern blot
B) an ELISA
C) a screen with a probe
D) a Gram stain
E) None of the above

Question

Quizplus · Accepted Answer

Peptidoglycan in the bacterial cell wall can be determined using a Gram stain, which differentiates between Gram-positive (thick peptidoglycan layer) and Gram-negative (thin peptidoglycan layer) bacteria based on cell wall structure. Southern blot, ELISA, and screen with a probe are techniques used for DNA or protein detection, and are not applicable for peptidoglycan detection.

Peptidoglycan in the Cell Wall of a Bacterial Cell Is