Which of these is an agent that is used to sterilize the plastic tubing of heart-lung machines?
A. Phenol
B. Ethylene oxide
C. Mercaptoethanol
D. 70% ethanol
Answer: B
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The goal of ________ is to identify each protein present in a given microenvironment at the time of sampling.
A. metaproteomics B. both metagenomics and metaproteomics C. metagenomics D. None of the choices are correct.
Which of the following receptors are MOST likely to demonstrate receptor adaptation?
A) pain receptors B) olfactory receptors in the nose C) photoreceptors in the eye D) stretch receptors in the muscles and tendons E) mechanoreceptors in the cochlea (ear)
Crossing over takes place during
a. early prophase 1 of meiosis only b. middle prophase 1 of meiosis only c. both prophase 1 and prophase 2 of meiosis d. interphase
Bacteria perform the following ecological roles. Which role typically does not involve symbiosis?
a. Skin commensalist b. Pathogen c. Decomposer d. Bioluminescent bacteria in fish e. Gut mutualist