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


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


cElectrostatic interactions are a significant stabilizing force in a protein structure


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



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


adipeptide


boligopeptide


cpeptide


dpolypeptide


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


bFalse


ceither true and false


dnone of the mentioned


View Answer True

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


avaline


bproline


cGlycine


dthreonine


View Answer Glycine

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


aTrue


bFalse


ceither true and false


dnone of the mentioned


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


btwenty


cnine


dnineteen


View Answer twenty

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


aTrue


bFalse


ceither true and false


dnone of the mentioned


View Answer True

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


aIt is a structure viewer for multiple platforms


b It is a structure viewer for single platforms


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


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



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


aTrue


bFalse


ceither true and false


d none of the mentioned


View Answer True

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


aTrue


bFalse


ceither true and false


dnone the mentioned


View Answer True

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