VMC-0095
QUESTION
The substance present in placenta acts as growth factor for Brucella is?
OPTIONS
(A) Brucellin
(B) Erythritol
(C) Bacterin
(D) Ergosterol
ANSWER
(B) Erythritol
EXPLANATION
Erythritol is a four-carbon sugar alcohol found in high concentrations in bovine placenta and fetal tissues and can serve as a preferential growth substrate for Brucella abortus. This contributes to the organism's tropism for reproductive tissues. Therefore option B is correct; brucellin and bacterin are Brucella-related preparations, while ergosterol is a fungal sterol.