Bioinformatics Mcqs

Page No. 41

In comparative approach to RNA structure prediction, algorithms that do not use pre-alignment, align multiple input sequences and infers a consensus structure.


aTrue


bFalse


ceither true and false


dnone of these


View Answer True

Based on recent benchmark comparisons, the comparative-type algorithms can reach an accuracy range of 20% to 80%.


a True


b False


ceither true and false


dnone of these


View Answer True

The pre-alignment independent programs fare __________ for predicting long sequences.


aslight better


bmuch better


c a bit worse


dmuch worse


View Answer much worse

For _________ RNA sequences, such as tRNA, some programs may be able to produce _________% accuracy.


asmall, 70


b small, 40


clarge, 90


dlarge, 75


View Answer small, 70

If prediction accuracy can be represented using a ______ the ______ programs score roughly 20% to 60% depending on the length of the sequences.


amultiple parameter, ab initio–based


bsingle parameter, ab initio–based


cmultiple parameter, comparative–based


dsingle parameter, comparative–based



Rigorously evaluating the performance of RNA prediction programs has traditionally been hindered by the dearth of three-dimensional structural information for RNA.


aTrue


bFalse


ceither true and false


dnoneof these


View Answer True

Nussinov and Jacobson (1980) were the first to design a precise and efficient algorithm for predicting secondary structure.


a True


bFalse


ceither true and false


dnone od these


View Answer True

In 1971, first estimation of the energy associated with regions of secondary structure by extrapolation from studies with small molecules was done and then an attempt was made to predict which configurations of larger molecules were the most energetically stable.


a True


bFalse


ceither true and false


dnone of these


View Answer True

Martinez (1984) made a list of possible double-stranded regions, and these regions were then given weights in proportion to their equilibrium constants, calculated by ______


a the Boltzmann function [exp (-∆G/RT2)]


bthe Boltzmann function [exp (-∆G/RT)]


c the Boltzmann function [exp (-∆G/RT -T)]


d the Boltzmann function [exp (∆G/RT)]



The third assumption in predicting RNA secondary structure is that the structure is assumed to be formed by _____ of the chain back on itself in a manner that ________


acrossing, produces knots


bcrossing, does not produce any knots


cfolding, produces knots


dfolding, does not produce any knots



Goto Page No.

Page 41 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