Category: GATE Biotechnology Previous Year Papers with Solutions

Q.15 The RNA primer synthesized during the replication process in bacteria is removed by (A) DNA gyrase (B)primase (C) DNA polymeraseI (D) DNA polymerase II RNA Primer Removal in Bacterial […]

Q.14 Of the two diploid species, species I has 36 chromosomes and species II has 28 chromosomes. How many chromosomes would be found in an allotriploid individual? (A) 42 or […]

Q.13 The catalytic efficiency for an enzyme is defined as kcat Vmax / kcat kcat / Km kcat / Vmax Catalytic efficiency measures how effectively an enzyme turns substrate into […]

Q.12 Which one of the following is an ABC transporter? (A)multidrug resistance protein (B) acetylcholine receptor (C)bacteriorhodopsin (D) ATP synthase The correct answer to the multiple-choice question is (A) multidrug resistance […]

Q.11 Phylum proteobacteria is subdivided into α-, β-, γ-, δ- and ε-proteobacteria based on (A) G+C content (B) 23S rRNA sequences (C) tRNA sequences (D) 16S rRNA sequences Phylum Proteobacteria […]

Q.10 In nature, the horizontal gene transfer across bacteria is mediated by (A) gene cloning followed by transformation (B)conjugation and transformation (C) conjugation only (D) transformation only Horizontal gene transfer […]

Q.10 In nature, the horizontal gene transfer across bacteria is mediated by (A) gene cloning followed by transformation (B)conjugation and transformation (C) conjugation only (D) transformation only Bacterial HGT Mechanisms: […]

Q.9 The nucleotide analogue used in DNA sequencing by chain termination method is (A) 1′,3′-dideoxy nucleoside triphosphate (B) 2′,3′-dideoxy nucleoside triphosphate (C) 2′,4′-dideoxy nucleoside triphosphate (D) 2′,5′-dideoxy nucleoside triphosphate Sanger […]

Q.7 Endogenous antigens are presented on to the cell surface along with (A) MHC-II (B) MHC-I (C) Fcγreceptor (D) complement receptor Endogenous antigens from intracellular sources like viruses or self-proteins […]

Q.6 The role of an adjuvant isto (A) prolong the persistence of antigen (B) cross link the antigen (C) increase the size of antigen (D) avoid inflammation Adjuvants enhance vaccine […]