Explore topic-wise MCQs in Bioinformatics.

This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Bioinformatics knowledge and support exam preparation. Choose a topic below to get started.

1.

The initiation of FASTA format has ____ symbol.

A. >
B. <
C. /
D. *
Answer» B. <
Discussion
2.

The gapped portion in the diagonals represents matches in FASTA.

A. True
B. False
Answer» C.
Discussion
3.

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

A. insignificant, uncertainty
B. significant, uncertainty
C. significant, certainty
D. insignificant, certainty
Answer» D. insignificant, certainty
Discussion
4.

THE_INITIATION_OF_FASTA_FORMAT_HAS______SYMBOL.?$

A. >
B. <
C. /
D. *
Answer» B. <
Discussion
5.

The gapped portion in the diagonals represents matches in FASTA?

A. True
B. False
Answer» C.
Discussion
6.

FASTA is derived from logic of the dot plot.

A. True
B. False
Answer» B. False
Discussion
7.

BLAST often produces several short HSPs rather than a single aligned region.

A. True
B. False
Answer» B. False
Discussion
8.

BLAST might not find matches for very short sequences.

A. True
B. False
Answer» B. False
Discussion
9.

Which of the following is not a benefit of BLAST?

A. Handling of gaps
B. Speed
C. More sensitive
D. Statistical rigor
Answer» B. Speed
Discussion
10.

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.

A. True
B. False
Answer» B. False
Discussion
11.

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

A. FASTA scans smaller window sizes
B. It gives more sensitive results
C. It gives less sensitive results
D. It gives results with a better coverage rate for homologs
Answer» D. It gives results with a better coverage rate for homologs
Discussion
12.

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

A. substitution matrix, hashing procedure
B. substitution matrix, blocks
C. hashing procedure, substitution matrix
D. ktups, substitution matrix
Answer» B. substitution matrix, blocks
Discussion
13.

In FASTA, For a Z-score > 15, the match can be considered extremely______ with _____of a homologous relationship.

A. insignificant, uncertainty
B. significant, uncertainty
C. significant, certainty
D. insignificant, certainty
Answer» D. insignificant, certainty
Discussion