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Q.21 A mutation in a gene that codes for a polypeptide results in a variant polypeptide that lacksthe last three amino acids. What type of mutation is this?(A) Synonymous mutation […]

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 […]