A DNA sample has a 260/280 ratio of 2. Which of the following treatments can be used to get a better purity of DNA sample?

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#Question id: 19525

#12. Applied Biology

CryI proteins are insecticidal to 

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#Question id: 19684

#13. Methods in Biology

Which of the following is used to measure the electrical activity of the heart?

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#Question id: 19685

#13. Methods in Biology

The P-waves of ECG indicates:

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#Question id: 19686

#13. Methods in Biology

Where is atrial repolarization hidden in the ECG?

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#Question id: 19687

#13. Methods in Biology

In ECG, QRS complex represents:

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#Question id: 19688

#13. Methods in Biology

Which kind of event is represented by the T wave on the ECG recording?