Which of the following is true when a Intercalation of ethidium ion into the DNA takes place

a. It unwind the two base pair by 260

b. Reduces the normal rotation per base pair from 360 to 100

c. Increases the normal rotation per base pair from 100 to 360

d. It first removes the negative supercoils and then introduces positive supercoils

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#Question id: 19703

#Unit 13. Methods in Biology

What is aVR in augmented unipolar limb lead?

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#Question id: 1208

#Unit 4. Cell Communication and Cell Signaling

Depending on the cell, increases in intracellular Ca2+ can do all of the following except:

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#Question id: 11860

#General Aptitude

The traffic lights at three different road crossing change after every 48 sec , 72 sec, and 108 sec. Respectively . If they all change simultaneously at 8 : 20 : 00 hours , then at what time will they again change simultaneously ?

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#Question id: 1311

#Unit 4. Cell Communication and Cell Signaling

Which of the following are not involve in anchoring junctions:

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#Question id: 13111

#Unit 2. Cellular Organization

Which of the following utilizes the H2O2 generated by other enzymes in the organelle to oxidize a variety of other substances—including alcohols, phenols, formic acid and formaldehyde—by the “peroxidative” reaction?