199. Which one of the following is a valid assumption regarding the molecular clock hypothesis in evolution? (1) For a given protein sequence, mutations accumulate at a constant rate in […]
Tag: dbt jrf 2019
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DBT BET JRF 2019 Previous Year Questions and Video solution
Key Assumptions of the PAM Matrix in Evolutionary Biology: Understanding What Doesn’t Belong
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- April 13, 2025
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198. Which one of the following is NOT an assumption of an evolutionary model of the PAM matrix? (1) Probability of a mutation at one position of a sequence is […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Interpreting Multiple Sequence Alignments: Understanding Regions of Insertions and Deletions
192. In a multiple sequence alignment of homologous protein sequences, a region of multiple insertions and deletions indicates the presence of: (1) a secondary structure element (2) a buried region […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Understanding Different Types of BLAST Programs for Sequence Search Tasks
191. Match the type of BLAST programs given in Group I to the particular type of sequence search task described in Group II Group I Group II 1 tblastn P […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Understanding Analogs, Paralogs, Orthologs, and Xenologs in Evolution
190. Genes or proteins that display the same activity, but have different origins and are the product of convergent evolution, are called: (1) Analogs (2) Paralogs (3) Orthologs (4) Xenologs […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Title: Understanding Sensitivity and Specificity in Homologous Database Searches
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- April 13, 2025
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188. Match the items in Group I with Group II with reference to a database search for identifying homologs of human hemoglobin. Group I Group II (P) Sensitivity (1) Measure […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Gene Set Enrichment Analysis (GSEA) and the Role of Gene Ontology
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- April 13, 2025
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186. For Gene Set Enrichment Analysis (GSEA), differentially expressed genes are grouped into broader functions. A typical tool/resource used for this purpose is: (1) Gene Ontology (2) BLAST against the […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Title: The Most Accurate Method for Rescoring Docked Ligand-Protein Complexes in Molecular Docking
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- April 13, 2025
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183. Which one of the following methods is most accurate in rescoring docked ligandprotein complexes? (1) Molecular mechanics non-bonded energy functions (2) Binding free energy calculations incorporating solvation models (3) […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Title: Exploring the Use of Sequence Profiles to Mine Related Sequences from TrEMBL
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- April 13, 2025
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181. A representative sequence profile of a given nucleotide binding domain is to be used to mine related sequences from TrEMBL. The database to be used to extract the query […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Title: Understanding the Role of Methanosarcina and Bacillus in Anaerobic Glucose Fermentation
180. An anaerobic flask containing 50 ml of media with glucose as the sole carbon source was inoculated with a consortium consisting of Methanosarcina and Bacillus. After two weeks of […]
