Answer Posted / navya

G.N Ramachandran recognised that an aminoacid residue in a
polypeptide chain cannot have just any pair of values
of "theta" and "psi".
By assuming that atoms behave as hard spheres allowed
ranges of theta and psi values can be predicted and
visualised in steric contour diagram called Ramachandran
plots.

What happens in methylation of dna?

1115

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Since pepsin is a gastric enzyme does it, has acid or basic optimum ph? What happen to pepsin when it passes to the duodenum?

972

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Where is csf found?

1065

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I understand that urine can act as a reagent to break disulfide bonds? I am particularly interested in bonds between cysteines. and or any other amino acids.

1485

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What is lattice energy?

1101

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Where is csf found? What is its function?

1032

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Is there difference between the initial and the final energy levels in catalyzed and non-catalyzed reactions?

1100

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What is dipole?

1096

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Do enzymes act better under acid or basic ph?

1032

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What does the expression –dc/dt indicates?

1011

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How do hydrophobic and hydrophilic residues arrange themselves in globular proteins?

2125

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All technical,written test questions

1716

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What factors can change the pKa value of an amino acid residue, and in which direction?

2504

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Which are the nucleotides “portions” that bind in the formation of nucleic acids? What is meant by the 5’ and 3’ extremities of nucleic acids?

965

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Explain what does thermodynamics helps in predicting?

953

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