Tag: dbt jrf pyq

27. The enzyme used to prevent unwanted self-ligation of DNA molecules during cloning experiments is: (a) Alkaline phosphatase, (b) Reverse transcriptase, (c) Terminal peroxidase, (d) Terminal phosphatase Introduction In DNA […]

26. The presence of Cardiolipin is a characteristic of the membrane of: (a) Endoplasmic reticulum, (b) Lysosomes, (c) Mitochondria, (d) Myelin sheets Introduction Cardiolipin is a unique phospholipid that plays […]

25. During eukaryotic replication, ________ degrades the RNA primer by 5’ – 3’ exonuclease activity. Options:- (a) DNA polymerase V, (b) FEN-1, (c) RNAseH1, (d) Topoisomerase IIB Introduction DNA replication […]

24. A scientist chose Nickel – NTA affinity chromatography to purify a recombinant protein. Which one of the following tag was present in his recombinant protein? (a) Flag, (b) Glutathione-S-transferase, […]

23. A geneticist interested in immune function induces random mutations in a number ofspecific genes in mice and then determines which of the resulting mutant mice have impaired immune function. […]

22. Genes that are related through gene duplication events are: (a) Analogs, (b) Homologs, (c) Orthologs, (d) Paralogs Introduction Gene duplication is a fundamental mechanism in molecular evolution. It plays […]

21. Which one of the following is used to validate the secondary structure of proteins? (a) Dot plot, (b) Neural network, (c) Ramachandran plot, (d) Sigma plot Introduction Proteins are […]

20. Which one of the following defines the angle in the protein backbone? (a) 𝑁 − 𝐶𝑎 − 𝐶 − 𝑁 , (b) 𝐶𝑎 − 𝐶 − 𝑁 − 𝐶 […]