Rebecca Lancefield Differentiated Streptococci on the Basis of Differences in Their

Question

Rebecca Lancefield differentiated streptococci on the basis of differences in their
A)cell wall carbohydrates in a serological test.
B)patterns of hemolysis on blood agar.
C)ability to produce catalase.
D)Gram stain appearance.
E)All of these choices are correct.

Accepted Answer

Rebecca Lancefield differentiated streptococci based on serological testing of their cell wall carbohydrates, specifically their antigenic properties. This allowed for the identification of different groups of streptococci, including Group A streptococci (S. pyogenes) and Group B streptococci (S. agalactiae).