Bioinformatics Basic Local Alignment Search Tool Blast Online Exam Quiz
Bioinformatics Basic Local Alignment Search Tool Blast GK Quiz. Question and Answers related to Bioinformatics Basic Local Alignment Search Tool Blast. MCQ (Multiple Choice Questions with answers about Bioinformatics Basic Local Alignment Search Tool Blast
The BLAST program was developed in _______
Options
A : 1992
B : 1995
C : 1990
D : 1991
Which of the following is not a variant of BLAST?
Options
A : BLASTN
B : BLASTP
C : BLASTX
D : TBLASTNX
In sequence alignment by BLAST, each word from query sequence is typically _______ residues for protein sequences and _______ residues for DNA sequences.
Options
A : ten, eleven
B : three, three
C : three, eleven
D : three, ten
Which of the following is not correct about BLAST?
Options
A : The BLAST web server has been designed in such away as to simplify the task of program selection
B : The programs are organized based on the type of query sequences
C : The programs are organized based on the type of nucleotide sequences, or nucleotide sequence to be translated
D : BLAST is not based on heuristic searching methods
A recent improvement in the implementation of BLAST is the ability to provide gapped alignment.
Options
A : True
B : False
C :
D :
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.
Options
A : True
B : False
C :
D :
In sequence alignment by BLAST, the second step is to search a sequence database for the occurrence of these words.
Options
A : True
B : False
C :
D :
The final step involves pairwise alignment by extending from the words in both directions while counting the alignment score using the same substitution matrix.
Options
A : True
B : False
C :
D :
BLASTX uses protein sequences as queries to search against a protein sequence database.
Options
A : True
B : False
C :
D :
TBLASTX queries protein sequences to anucleotide sequence database with the sequences translated in all six reading frames.
Options
A : True
B : False
C :
D :
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