Bioinformatics Mcqs

Page No. 26

The use of low-complexity masking in the BLAST procedure means that it may have higher specificity than FASTA because potential false positives are reduced.


aTrue


bFalse


ceither true and false


dnone of the mentioned


View Answer True

Which of the following is not a benefit or a factual of FASTA over BLAST?


aFASTA scans smaller window sizes


bIt gives more sensitive results


cIt gives less sensitive results


d It gives results with a better coverage rate for homologs



BLAST uses a _______ to find matching words, whereas FASTA identifies identical matching words using the _____


asubstitution matrix, hashing procedure


bsubstitution matrix, blocks


c hashing procedure, substitution matrix


dktups, substitution matrix



In FASTA, For a Z-score > 15, the match can be considered extremely ______ with _____ of a homologous relationship.


ainsignificant, uncertainty


bsignificant, uncertainty


csignificant, certainty


dinsignificant, certainty



The function of the scoring matrix is to conduct one-to-one comparisons between all components in two sequences and record the optimal alignment results.


aTrue


bFalse


ceither true and false


dnone of the mentioned


View Answer True

Score can be negative in Smith–Waterman algorithm.


aTrue


bFalse


ceither true and false


dnone of the mentioned


View Answer False

One of the challenges in SWA is obtaining correct alignments in regions of low similarity between distantly related biological sequences.


aTrue


bFalse


ceither true and false


dnone of the mentioned


View Answer True

In SW algorithm, to align two sequences of lengths of m and n _________ time is required.


aO(mn)


bO(m2n)


cO(m2n3)


dO(mn2)


View Answer O(m2n)

Local sequence alignments are necessary for many cases out of which one is repeated.


aTrue


bFalse


ceither true and false


dnone of the mentioned


View Answer True

In Smith–Waterman algorithm, in initialization Step, the _________ row and ________ column are subject to gap penalty.


afirst, first


bfirst, second


csecond, First


dfirst, last


View Answer first, first

Goto Page No.

Page 26 of 92

Alphabetical MCQs Categories

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan