Questions and answers for exam Preparation

MCQs

Total Questions : 165 | Page 15 of 17 pages

Question 141. GeneQuiz focuses on deriving a predicted protein function, based on a variety of available evidence, including the evaluation of the similarity to the closest homolog in a database.

True
False
May be True or False
Can't say

Discuss Question

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

Question 142. An approach to classification of genes that encode enzymes is to examine relationships among multiple enzymes that perform the same biochemical function in the same organism.

True
False
May be True or False
Can't say

Discuss Question

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

Question 143. The designation ECa.b.c.d conveys information. Which of the following is not one of it?

One of twelve main classes of biochemical reactions
The group of substrate molecule
The nature of chemical bond that is involved in the reaction
Designation for acceptor molecules (cofactors)

Discuss Question

Answer: Option A. -> One of twelve main classes of biochemical reactions
Answer: (a).One of twelve main classes of biochemical reactions

Question 144. Which of the given statement is incorrect?

Paralogous sequences, frequently are found to have dissimilar functions
An early classification scheme for eight related groups of E. coli genes included categories for enzymes, transport elements
An early classification scheme for eight related groups of E. coli genes included categories for regulators, membranes, structural elements, protein factors, leader peptides, and carriers
Ninety percent of E. coli genes related by significant sequence similarity fell into these same broad categories

Discuss Question

Answer: Option A. -> Paralogous sequences, frequently are found to have dissimilar functions
Answer: (a).Paralogous sequences, frequently are found to have dissimilar functions

Question 145. Which of the given statement is incorrect regarding MAGPIE?

It analyzes the genome using a set of automated processes
It is designed for high-throughput genome sequence analysis
It is unable to locate potential promoters
It automatically annotates genomic sequence data and maintains a daily up-to-date record in response to user queries about one or more genomes

Discuss Question

Answer: Option C. -> It is unable to locate potential promoters
Answer: (c).It is unable to locate potential promoters

Question 146. In cluster analysis of microarray data– A node is created between the _________ scoring pair, and the gene expressed profiles of these two genes are averaged and the joined elements are weighted by the _________ of elements they contain.

lowest, frequency
average, sequence
lowest, number
highest, number

Discuss Question

Answer: Option D. -> highest, number
Answer: (d).highest, number

Question 147. SVMs (Support vector machines) are a binary classification method to discriminate one set of data points from another.

True
False
May be True or False
Can't say

Discuss Question

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

Question 148. In Self-organizing maps a choice is made of a number of clusters by which to organize the data.

True
False
May be True or False
Can't say

Discuss Question

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

Question 149. The hierarchical clustering method generates a similarity score [S(X,Y)] for all gene combinations, places the scores in a matrix, joins those genes that have the highest score, and then continues to join progressively less similar pairs.