Question:
What is the specific function of the BLASTn program?
What is the specific function of the BLASTn program?
Show Hint
BLASTn → Nucleotide vs Nucleotide comparison
Updated On: Mar 17, 2026
- Compare protein sequences
- Compare nucleotide sequences
- Predict protein structure
- Align protein structures
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Concept:
BLAST (Basic Local Alignment Search Tool) is a widely used bioinformatics program that compares biological sequences with sequences stored in databases to identify similarities.
Step 1:Understanding BLAST programs.
Different versions of BLAST are used for different types of sequences:
Step 2:Function of BLASTn.
BLASTn specifically compares a nucleotide query sequence (DNA or RNA) against a nucleotide database to identify regions of similarity.
Step 3:Applications of BLASTn.
BLASTn is commonly used for:
Therefore, the primary function of BLASTn is to compare nucleotide sequences with nucleotide databases to find similar regions.
BLAST (Basic Local Alignment Search Tool) is a widely used bioinformatics program that compares biological sequences with sequences stored in databases to identify similarities.
Step 1:Understanding BLAST programs.
Different versions of BLAST are used for different types of sequences:
- BLASTn – Nucleotide vs nucleotide comparison
- BLASTp – Protein vs protein comparison
- BLASTx – Translated nucleotide vs protein comparison
- tBLASTn – Protein vs translated nucleotide database
Step 2:Function of BLASTn.
BLASTn specifically compares a nucleotide query sequence (DNA or RNA) against a nucleotide database to identify regions of similarity.
Step 3:Applications of BLASTn.
BLASTn is commonly used for:
- Identifying homologous genes
- Detecting species similarity
- Finding conserved DNA regions
- Genome annotation
Therefore, the primary function of BLASTn is to compare nucleotide sequences with nucleotide databases to find similar regions.
Was this answer helpful?
0
0
Top CUET PG Bioinformatics Questions
- Which of the following relationships is/are not true?
(A). Most probable velocity = \( \sqrt{\frac{2RT}{M}} \)
(B). \( PV = \frac{2}{3}kT \)
(C). Compressibility factor \( Z = \frac{PV}{nRT} \)
(D). Average kinetic energy of gas = \( \frac{1}{2}kT \)
Choose the correct answer from the options given below Match List-I with List-II
Choose the correct answer from the options given below:
- The shielding constant of a 2p electron (calculated using Slater's rules) is
Match List-I with List-II
Choose the correct answer from the options given below:
- The structure of protein comprises of:
(A). Primary structure of protein is associated with amino acids
(B). Secondary structure of protein is associated to peptides
(C). Tertiary structure of protein is associated with polypeptide chains
(D). Quaternary structure of protein is associated with polypeptide chains
Choose the correct answer from the options given below:
View More Questions
Top CUET PG Bioinformatics and Genomics Questions
- Which of the following relationships is/are not true?
(A). Most probable velocity = \( \sqrt{\frac{2RT}{M}} \)
(B). \( PV = \frac{2}{3}kT \)
(C). Compressibility factor \( Z = \frac{PV}{nRT} \)
(D). Average kinetic energy of gas = \( \frac{1}{2}kT \)
Choose the correct answer from the options given below Match List-I with List-II
Choose the correct answer from the options given below:
- The shielding constant of a 2p electron (calculated using Slater's rules) is
Match List-I with List-II
Choose the correct answer from the options given below:
- In a chromatographic analysis of lemon oil a peak for limonene has a retention time of 8.36 min with a baseline width of 0.96 min. y-Terpinene elutes at 9.54 min with a baseline width of 0.64 min. What is the resolution between the two peaks?
View More Questions
Top CUET PG Questions
- Given below are two statements:
Statement I: For Plato the meaning of the word 'Justice' is basically a conception in the mind only.
Statement II: For Plato the meaning of the word 'Justice' is fixed, mind-independently
In the light of the above statements, choose the correct answer from the options given below: - What is the electron count of OS6CO182-?
- XeF4 hydrolysis gives A + B, HF, and Oxygen. Find A and B
- What is more basic in pyrol and pyridine?
- Hydrolysis of Al2C3, Be2?
View More Questions