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Select the most correct choice.
A disulphide link gives rise to the following structure of a protein.
Concept: undefined >> undefined
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Give scientific reasons:
The disaccharide sucrose gives negative Tollens test while the disaccharide maltose gives a positive Tollens test.
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Give scientific reasons:
On complete hydrolysis DNA gives equimolar quantities of adenine and thymine.
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Give scientific reasons:
α-Amino acids have high melting points compared to the corresponding amines or carboxylic acids of comparable molecular mass.
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Give scientific reasons:
α-Amino acids have high melting points compared to the corresponding amines or carboxylic acids of comparable molecular mass.
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Give scientific reasons:
Hydrolysis of sucrose is called inversion.
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Give scientific reasons:
On boiling egg albumin becomes opaque white.
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Give scientific reasons:
On boiling egg albumin becomes opaque white.
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The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide is double stranded. (_______)
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The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide contains uracil. (________)
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The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide contains D-ribose. (_______)
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The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide contains guanine. (_______)
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Write the sequence of the complementary strand for the following segment of a DNA molecule.
5' - CGTTTAAG - 3'
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Write the sequence of the complementary strand for the following segment of a DNA molecule.
5' - CCGGTTAATACGGC - 3'
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Write the names and schematic representations of all the possible dipeptides formed from alanine, glycine and tyrosine.
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Write the names and schematic representations of all the possible dipeptides formed from alanine, glycine and tyrosine.
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Give two evidences for presence of formyl group in glucose.
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Draw a neat diagram for the following:
Haworth formula of glucopyranose.
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Draw a neat diagram for the following:
Zwitter ion
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