A gram-negative diplococcus grew on 5% sheep blood agar and chocolate agar, had scant growth on MacConkey agar, and had no growth on modified Thayer-Martin (MTM) agar. The organism was identified as N. sicca. Which one of the following statements explains the discrepancy of the results obtained on the MTM agar?
a. The medium was most likely expired.
b. The organism was most likely incorrectly transported.
c. The organism was most likely incubated at 35°C instead of 25°C.
d. No discrepancy is present. N. sicca does not grow on MTM agar.
D
N. sicca grows on sheep blood agar and chocolate agar but does not grow on MTM agar.
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A chemical derivative of adenine.
Choose the letter of the best match: A. abscisic acid B. auxin C. ethylene D. cytokinin E. gibberellin
While on safari in Serengeti National Park, Tanzania, your friend ventures away from camp and is bitten by a boomslang snake. The venom will cause hemorrhaging and death within hours. Fortunately, you are prepared and administer artificially acquired passive immunity. With what did you inject your friend?
A) antigen B) snake venom C) penicillin D) antibodies
In nonvascular plants, sperm are formed in the archegonia by meiosis
Indicate whether the statement is true or false
When plants undergo allopatric speciation, an initial reproductive barrier is often
A) polyploidy. B) gametic isolation. C) temporal isolation. D) pollinator choice.