Questions and answers for exam Preparation

MCQs

Total Questions : 100 | Page 3 of 10 pages

Question 21. The main feature of computer visualization programs is interactivity, which allows users to visually manipulate the structural images through a graphical user interface.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 22. Balls and sticks are solid spheres and rods, representing atoms and bonds, respectively.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 23. Ribbon diagrams use cylinders or spiral ribbons to represent α-helices and broad, flat arrows to represent β-strands.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 24. A wire-frame diagram is a line drawing representing bonds between atoms.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 25. A Protein Data Bank (PDB) data file for a protein structure contains only x, and z coordinates of atoms.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option B. -> False
Answer: (b).False

Question 26. The intramolecular approach does not depend on sequence similarity between the proteins to be compared.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 27. Which of the following is incorrect about Multiple Structure Alignment?

The alignment strategy is different than the Clustal sequence alignment using a progressive approach
All structures are first compared in a pairwise fashion
A distance matrix is developed based on structure similarity scores such as RMSD
The aligned structures create a median structure that allows other structures to be progressively added for comparison based on the hierarchy described in the guide tree

Discuss Question

Answer: Option A. -> The alignment strategy is different than the Clustal sequence alignment using a progressive approach
Answer: (a).The alignment strategy is different than the Clustal sequence alignment using a progressive approach

Question 28. Which of the following is incorrect about SSAP?

It is a web server that uses an intramolecular distance–based method
Matrices are built based on the Cβ distances of all residue pairs
Dynamic programming approach is not used here
Dynamic programming approach is used

Discuss Question

Answer: Option C. -> Dynamic programming approach is not used here
Answer: (c).Dynamic programming approach is not used here

Question 29. Which of the following is incorrect about the intramolecular approach?

The method works by generating a distance matrix between residues of the same protein
It generates a string between residues of the same protein
In comparing two protein structures, the distance matrices from the two structures are moved relative to each other to achieve maximum overlaps
By overlaying two distance matrices, similar intramolecular distance patterns representing similar structure folding regions can be identified

Discuss Question

Answer: Option B. -> It generates a string between residues of the same protein
Answer: (b).It generates a string between residues of the same protein

Question 30. VAST is a web server that performs alignment using intramolecular approaches only.