Which of the following is true about Expectation Maximization (EM) method?

The final result is not sensitive to the initial alignment

The log odds scores of the PSSM are modified at the end of the process

The procedure stops prematurely if the scores reach convergence

The final result is not sensitive to the initial alignment

Local optimum is an advantage of EM method

For what type of sequences Gibbs sampling is used?

Closely related sequences that share common motifs

Distinctly related sequences that share common motifs

Closely related sequences that share common motifs

Explore topic-wise MCQs in Bioinformatics.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Bioinformatics knowledge and support exam preparation. Choose a topic below to get started.

1.	_______ is an interactive program for generating sequence logos.
A.	EMBOSS
B.	WebLogo
C.	LOGOLY
D.	BLAST
Answer» C. LOGOLY

Discussion

2.	Conserved positions have _____ residues and bigger symbols.
A.	fewer
B.	more
C.	maximum
D.	minimum
Answer» B. more

Discussion

3.	The overall height of a logo position reflects how conserved the position is, and the _____ of each letter in a position reflects the _______ of the residue in the alignment.
A.	height, relative frequency
B.	width, relative frequency
C.	height, amplitude
D.	width, amplitude
Answer» B. width, relative frequency

Discussion

4.	A multiple sequence alignment or a motif is often represented by a graphic representation called a ______
A.	logo
B.	motto
C.	algorithm
D.	algo
Answer» B. motto

Discussion

5.	Which of the following is true about Expectation Maximization (EM) method?
A.	The log odds scores of the PSSM are modified at the end of the process
B.	The procedure stops prematurely if the scores reach convergence
C.	The final result is not sensitive to the initial alignment
D.	Local optimum is an advantage of EM method
Answer» C. The final result is not sensitive to the initial alignment

Discussion

6.	For what type of sequences Gibbs sampling is used?
A.	Closely related sequences
B.	Distinctly related sequences
C.	Distinctly related sequences that share common motifs
D.	Closely related sequences that share common motifs
Answer» D. Closely related sequences that share common motifs

Discussion

Explore topic-wise MCQs in Bioinformatics.

_______ is an interactive program for generating sequence logos.

Conserved positions have _____ residues and bigger symbols.

The overall height of a logo position reflects how conserved the position is, and the _____ of each letter in a position reflects the _______ of the residue in the alignment.

A multiple sequence alignment or a motif is often represented by a graphic representation called a ______

Which of the following is true about Expectation Maximization (EM) method?

For what type of sequences Gibbs sampling is used?

The overall height of a logo position reflects how conserved the position is, and the _ of each letter in a position reflects the ___ of the residue in the alignment.