Bioinformatics Mcqs

Page No. 28

Which of the following is not correct about the stabilizing Forces?


aProtein structures from secondary to quaternary are maintained by noncovalent forces

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bThey include electrostatic interactions but not van der Waals forces, and hydrogen bonding

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cElectrostatic interactions are a significant stabilizing force in a protein structure

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dElectrostatic interactions occur when excess negative charges in one region are neutralized by positive charges in another region

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A linear polymer of more than fifty amino acid residues is referred to as a ________


adipeptide

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boligopeptide

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cpeptide

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dpolypeptide

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View Answer polypeptide

The peptide formation involves two amino acids covalently joined together between the carboxyl group of one amino acid and the amino group of another.


aTrue

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bFalse

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ceither true and false

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dnone of the mentioned

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View Answer True

_____ the smallest amino acid, has a hydrogen atom as the R group.


avaline

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bproline

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cGlycine

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dthreonine

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View Answer Glycine

Within the hydrophobic set of amino acids, they can be further divided into aliphatic and aromatic.


aTrue

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bFalse

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ceither true and false

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dnone of the mentioned

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View Answer True

The building blocks of proteins are ______ naturally occurring amino acids, small molecules that contain a free amino group (NH2) and a free carboxyl group (COOH).


aten

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btwenty

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cnine

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dnineteen

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View Answer twenty

Ribbons another UNIX program similar to Molscript, generates ribbon diagrams depicting protein secondary structures.


aTrue

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bFalse

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ceither true and false

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dnone of the mentioned

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View Answer True

Which of the following is wrong about Swiss-PDB Viewer?


aIt is a structure viewer for multiple platforms

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b It is a structure viewer for single platforms

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cIt is essentially a Swiss-Army knife for structure visualization and modeling

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dIt is capable of structure visualization, analysis, and homology modeling

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Different representation styles can be used in combination to highlight a certain feature of a structure while deemphasizing the structures surrounding it.


aTrue

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bFalse

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ceither true and false

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d none of the mentioned

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View Answer True

Ribbon diagrams use cylinders or spiral ribbons to represent α-helices and broad, flat arrows to represent β-strands.


aTrue

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bFalse

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ceither true and false

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dnone the mentioned

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View Answer True

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