Category: GATE Biotechnology Previous Year Papers with Solutions

Q.20 Which one of the following is NOT a part of the human nonspecific defense system?(A) Interferon (B) Mucous (C) Saliva (D) Antibody Antibodies are not part of the human […]

Q.19 Which of the following processes can increase genetic diversity of bacteria in nature?P. ConjugationQ. TransformationR. TransductionS. Transfection(A) P only (B) P and Q only (C) P, Q and R […]

Q.18 Which one of the following techniques can be used to compare the expression of a largenumber of genes in two biological samples in a single experiment?(A) Polymerase chain reaction […]

Q.17 Match the human diseases in Group I with the causative agents in Group II.Group I                              […]

Q.16 DNA synthesis in eukaryotes occurs during which phase of the mitotic cell cycle? (A) M (B) G1 (C) S (D) G0 DNA synthesis in eukaryotes occurs during the S […]

Q.15 Which one of the following enzymes is encoded by human immunodeficiency virus (HIV)genome?(A) Reverse transcriptase (B) Phospholipase(C) Phosphatase (D) ATP synthase Reverse transcriptase is the enzyme encoded by the […]

Q.14 Which one of the following is a database of protein sequence motifs? (A) PROSITE (B) TrEMBL (C) SWISSPROT (D) PDB PROSITE is the database of protein sequence motifs. Among the […]

Q.13 Tetracycline inhibits the(A) interaction between tRNA and mRNA(B) translocation of mRNA through ribosome(C) peptidyl transferase activity(D) binding of amino–acyl tRNA to ribosome Tetracycline inhibits the binding of aminoacyl-tRNA to […]

Q.12 Which one of the following is used as a pH indicator in animal cell culture medium?(A) Acridine orange (B) Phenol red(C) Bromophenol blue (D) Coomassie blue Phenol red is […]

Q.11 The Bt toxin gene from Bacillus thuringiensis used to generate genetically modified crops is (A) cry (B) cro (C) cdc (D) cr The Bt toxin gene from Bacillus thuringiensis used in […]