Which one of the following amino acids is capable of forming a disulfide linkage?
A. tyrosine
B. cysteine
C. arginine
D. methionine
E. isoleucine
Answer: B
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Which organisms would MOST likely be isolated from aerobic growth conditions with acetate and a soil sample heated to 80 °C for 10 min?
A) aerobic or facultative anaerobic acetogens B) endospore-forming bacteria C) hyperthermophilic heterotrophic bacteria D) mycoplasmas
An example of a nonpolar signaling molecule is ____
a. epinephrine b. insulin c. testosterone d. growth factors e. neurotransmitters
When one species feeds on another prey species, typically killing it, the relationship between the two interacting species is referred to as ________
Fill in the blank(s) with correct word
The tiny stones in the vestibule, which move in response to gravity, are made of
A) calcium carbonate. B) iron oxide. C) magnesium. D) sodium chloride. E) calcium hydroxide.