The respiratory passageways have smooth muscle in their walls. Which of the following best describes the effect of acetylcholine and epinephrine on the respiratory passageways?

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#Question id: 1376

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is NOT TRUE about gap junctions?

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#Question id: 4150

#Unit 3. Fundamental Processes

Posttranslational glycosylation of proteins is inhibited specifically by:

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#Question id: 14692

#Unit 13. Methods in Biology

A box contains 6 white balls and 3 black balls and another box contains 4 white balls and 5 black balls. The probability that a ball selected from one of the box again selected at random is a white ball.

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#Question id: 18815

#Unit 13. Methods in Biology

Which of the following PCR technique is best suited for detection of point mutation in DNA?

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#Question id: 8895

#Unit 9. Diversity of Life Forms

What is one characteristic that separates chordates from all other animals?