Explore topic-wise MCQs in Bioinformatics.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Bioinformatics knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of the following is untrue regarding BLAST and FASTA?

A. FASTA is faster than BLAST
B. FASTA is the most accurate
C. BLAST has limited choices of databases
D. FASTA is more sensitive for DNA-DNA comparisons
Answer» B. FASTA is the most accurate
Discussion
2.

Which of the following does not describe BLAST?

A. It stands for Basic Local Alignment Search Tool
B. It uses word matching like FASTA
C. It is one of the tools of the NCBI
D. Even if no words are similar, there is an alignment to be considered
Answer» E.
Discussion
3.

Local alignments are more used when _____________

A. There are totally similar and equal length sequences
B. Dissimilar sequences are suspected to contain regions of similarity
C. Similar sequence motif with larger sequence context
D. Partially similar, different length and conserved region containing sequences
Answer» B. Dissimilar sequences are suspected to contain regions of similarity
Discussion
4.

Which of the following does not describe local alignment algorithm?

A. Score can be negative
B. Negative score is set to 0
C. First row and first column are set to 0 in initialization step
D. In traceback step, beginning is with the highest score, it ends when 0 is encountered
Answer» B. Negative score is set to 0
Discussion
5.

When did Smith Waterman first describe the algorithm for local alignment?

A. 1950
B. 1970
C. 1981
D. 1925
Answer» D. 1925
Discussion