A researcher introduces double-stranded RNA into a culture of mammalian cells and can identify its location or that of its smaller subsections experimentally, using a fluorescent probe. Some time later, she finds that the introduced strand separates into single-stranded RNAs, one of which is degraded. What does this enable the remaining strand to do?

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#Question id: 4230

#Unit 3. Fundamental Processes

Which of the following molecular structures contain codons?

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#Question id: 19106

#Unit 8. Inheritance Biology

Assume that mating is random. First, consider an autosomal recessive disease that is usually lethal in childhood, and that has an incidence among newborns of 1/3000. What mutation rate would be required to maintain this frequency in the population? 

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#Question id: 26555

#Unit 3. Fundamental Processes

Which of the following is incorrect about Dicer

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#Question id: 11556

#Unit 7. System Physiology – Animal

During mammalian labor and delivery, the contraction of uterine muscles is enhanced by oxytocin. This is an example of ________.

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#Question id: 20321

#Unit 4. Cell Communication and Cell Signaling

Quorum sensing receptors are-

a. histidine sensor kinases

b. cytoplasmic transcription factors

c.  tyrosine kinases