With one exception, species of the genus Haemophilus require which of the following media ingredients for in vitro growth?

a. Vitamin K and hemin
b. Hemin and nicotine adenine dinucleotide (NAD)
c. Vitamin K and NAD
d. Hemin and cysteine


B
Species of the genus Haemophilus, except for Haemophilus aphrophilus, require hemin and NAD for in vitro growth.

Biology & Microbiology

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