Database Similarity Searching MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Database Similarity Searching, a fundamental topic in the field of Bioinformatics. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Database Similarity Searching MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Database Similarity Searching mcq questions that explore various aspects of Database Similarity Searching problems. Each MCQ is crafted to challenge your understanding of Database Similarity Searching principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Bioinformatics tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Database Similarity Searching MCQs are your pathway to success in mastering this essential Bioinformatics topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Database Similarity Searching. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Database Similarity Searching knowledge to the test? Let's get started with our carefully curated MCQs!

Database Similarity Searching MCQs | Page 2 of 5

Q11.
The BLAST program was developed in _______
Discuss
Answer: (c).1990
Q12.
In sequence alignment by BLAST, each word from query sequence is typically _______ residues for protein sequences and _______ residues for DNA sequences.
Discuss
Answer: (c).three, eleven
Q13.
In sequence alignment by BLAST, the second step is to search a sequence database for the occurrence of these words.
Discuss
Answer: (a).True
Q14.
The final step involves pairwise alignment by extending from the words in both directions while counting the alignment score using the same substitution matrix.
Discuss
Answer: (a).True
Q15.
A recent improvement in the implementation of BLAST is the ability to provide gapped alignment.
Discuss
Answer: (a).True
Q16.
Which of the following is not a variant of BLAST?
Discuss
Answer: (d).TBLASTNX
Q17.
BLASTX uses protein sequences as queries to search against a protein sequence database.
Discuss
Answer: (b).False
Q18.
TBLASTX queries protein sequences to anucleotide sequence database with the sequences translated in all six reading frames.
Discuss
Answer: (b).False
Discuss
Answer: (d).BLAST is not based on heuristic searching methods
Q20.
If one is looking for protein homologs encoded in newly sequenced genomes, one may use TBLASTN, which translates nucleotide database sequences in all six open reading frames.
Discuss
Answer: (a).True
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