Small interfering RNAs (siRNAs) are a type of small regulatory RNA that, like microRNAs, are incorporated into the RISC complex
A. true
B. false
A
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Many hyperthermophiles are chemolithoautotrophs
Indicate whether the statement is true or false.
In a monocot stem, vascular bundles are arranged in a circle
____________________ Indicate whether the statement is true or false.
Based on Kirby-Bauer testing, a microbe is determined to be susceptible to both antibiotic X and antibiotic Y. Further testing indicates that antibiotic X has a therapeutic index of 10 whereas antibiotic Y has a therapeutic index of 3. Which antibiotic would be the best choice based on the information given?
A. Antibiotic X B. Antibiotic Y C. Either one would be an equally good choice based on the information given.
Which major tissue type exhibits the shortening of its cells (i.e., contraction) as a major function?
A. Connective B. Nervous C. Muscle D. Epithelial