the cell wall growth patterns of a variety of bacteria have been studied using fluorescently labeled d-amino acids. this approach has worked because
a) Bacteria incorporate fluorescently labeled d-amino acids into their cell walls.
b) Bacteria avoid fluorescently labeled d-amino acids in their cell walls.
c) Fluorescently labeled d-amino acids inhibit bacterial cell wall growth.
d) Bacteria selectively metabolize fluorescently labeled d-amino acids in their cell walls.