How do Gram stain results differentiate between Gram-positive bacteria and Gram-negative bacteria?
1
Gram-positive results are purple, Gram-negative results are pink.
2
Gram-positive results are blue-green, Gram-negative results are blue-black.
3
Gram-positive results are blue-black, Gram-negative results are blue-green.
4
Gram-positive results are pink, Gram-negative results are purple.