Bioinformatics Mcqs

Page No. 54

Only Advanced neural networks are used to discern long-distance pairwise interactions among cysteine residues.


a True


bFalse


ceither true and false


dnone of these


View Answer False

Accurate prediction of _____ bonds may also help to predict the _____ dimensional structure of the protein of interest.


anitrogen, two


bnitrogen, three


cdisulfide, three


doxygen, three


View Answer disulfide, three

A disulfide bridge is a unique type of _____ modification in which _____ bonds are formed between cysteine residues.


aposttranslational, covalent


b translational, covalent


ctranslational, ionic


d posttranslational, ionic



In a statistical learning process called support vector machine (SVM), a hyperplane is _____


aa linear or nonlinear mathematical function


b nonlinear mathematical function


c linear mathematical function


d exponential mathematical function



To minimize false-positive results, a statistical learning process called support vector machine (SVM) can be used to increase the specificity of prediction.


aTrue


b False


ceither true and false


dnone of these


View Answer True

It is important to use bioinformatics tools to predict sites for posttranslational modifications based on specific protein sequences. However, prediction of such modifications can often be difficult because the short lengths of the sequence motifs associated with certain modifications.


aTrue


bFalse


ceither true and false


dnone of these


View Answer True

Which of the following is a wrong about AutoMotif?


a It is a web server predicting protein sequence motifs


b It doesn’t use SVM approach


c In this process, the query sequence is chopped up into a number of overlapping fragments


d The overlapping fragments from are query sequence are fed into different kernels (similar to nodes)



TargetP is a neural network-based program, similar to SignalP.


aTrue


bFalse


ceither true and false


dnone of these


View Answer True

Which of the following is not one of the training sets in SignalP?


a Prokaryotes


bEukaryotes


c Gram-positive bacteria


d Gram-negative bacteria


View Answer Prokaryotes

Which of the following is an incorrect statement about SignalP?


a It only uses neural networks


bIt only uses HMMs


cIt is a web-based program that predicts subcellular localization signals


d It uses both neural networks and HMMs


View Answer It only uses HMMs

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