The isoelectric point of alanine is pH = 6.15. It is mixed with proline (pHCOOH = 2.0; pHNH2= 10.6), and the mixture is placed in an electric field at pH 6.15. Which statement is true?

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#Question id: 976

#Unit 1. Molecules and their Interaction Relevant to Biology

Which amino acid is not directly involved in the de novo biosynthesis of purines?

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#Question id: 32325

#Unit 1. Molecules and their Interaction Relevant to Biology

Keq for this reaction will be

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#Question id: 24443

#Unit 13. Methods in Biology

Normal electrocardiograms recorded from the three standard bipolar limb leads (I, II, III). Match the following.

Column I	Column II
a. P wave	i. Positive
b. T wave	ii. Negative
c. R wave
d. S wave

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#Question id: 31100

#Unit 2. Cellular Organization

At critical concentration (Cc):

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#Question id: 14087

#Unit 1. Molecules and their Interaction Relevant to Biology

Certain thermophiles, microorganisms that live under conditions of extreme high temperatures have DNA