Tag: dbt jrf pyq 2021

35. DNA fingerprinting for forensic investigation is based on: (a)Exon sequences (b)Intron sequences (c)Promoter sequences (d)Repetitive sequences   The Basis of DNA Fingerprinting is Repetitive Sequences DNA fingerprinting has revolutionized […]

Which nuclease of bacteria is responsible for degrading the genome of the invading lambda phage? (a)Exonuclease (b)Phagodegradase (c)Restriction endonuclease (d)Topoisomerase   How Restriction Endonucleases Protect Bacteria from Lambda Phage Invasion […]

Which one of the following molecules causes catabolite repression of lac operon? (a)Arabinose (b)Galactose (c)Glucose (d)Lactose   Catabolite Repression of the lac Operon in Bacteria by Glucose The lac operon […]

26. Match the components of list 1 with those in list II List I                                  […]

24. Which one of the following is NOT a characteristic of a collagen fibre? (a)Each of the strand is independently stable due to the presence hydrogen bonds (b)It is a […]

23. Which one of the following amino acids has a strong tendency to disrupt α­helices and ß-strands? (a)Alanine (b)Glutamate (c)Proline (d)Tyrosine Article: Introduction Proteins are complex molecules that fold into […]

22. Beta-lactam ring is presentin: Options:- (a)Chloramphenicol (b)Erythromycin (c)Penicillin (d)Tetracycline Introduction The beta-lactam ring is a crucial structural component found in a specific class of antibiotics known as beta-lactam antibiotics. […]

If the codons for translation of mRNAs to proteins were 4 letters long instead of 3what would be the maximum number of hypothetical amino acids that could uniquely be recognized […]

19. Which one of the following CANNOT be used for differential gene expression analysis? (a) EST data analysis (b) Microarray data analysis (c) mRNA sequencing data analysis (d) Whole genome […]

18. Match the components of list I with those in list II. List I                                  […]