Category: GATE Biotechnology Previous Year Papers with Solutions

Q.35 The growth medium for mammalian cells contains serum. One of the major functions of serum is to stimulate cell growth and attachment. However, it must be filter sterilized to […]

Q.34 The reactions leading to the formation of amino acids from the TCA cycle intermediates are (A) carboxylation (B) isomerization (C) transamination (D) decarboxylation TCA Cycle to Amino Acids: Transamination […]

Q.33 The statistical frequency of the occurrence of a particular restriction enzyme cleavage site that is 6 bases long can be estimated to be (A) once every 24 bases    […]

Q.32 The algorithm for BLAST is based on (A) Dynamic Programming (B) Hidden Markov Model (C) k-tuple analysis (D) Neural Network The BLAST (Basic Local Alignment Search Tool) algorithm fundamentally […]

Q.31 Reactions between antibodies and antigens that are detected by precipitate formation in an agar gel are referred as (A) immunoprecipitation assay (B) immunodiffusion assay (C) immunoaggregation assay (D) immunofixation […]

Q.30 Prior exposure of plants to pathogens is known to increase resistance to future pathogen attacks. This phenomenon is known as (A) systemic acquired resistance (B) hypersensitive response (C) innate […]

Q.29 The 5’ ends of the mature forms of the prokaryotic mRNAs and tRNAs are (A) a triphosphate group in mRNAs and a monophosphate group in tRNAs (B) triphosphate groups […]

Q.28 Amino acid residue which is most likely to be found in the interior of water-soluble globular proteins is (A) Threonine (B) Aspartic acid (C) Valine (D) Histidine Amino Acid […]

Q.27 The product(s) resulting from the hydrolysis of maltose is/are (A) a mixture of α-D-Glucose and β-D-Glucose (B) a mixture of D-Glucose and L-Glucose (C) α-D-Glucose only (D) β-D-Glucose only […]

Q.26 The 4-amino or 4-keto group of pyrimidine bases is located in the (A) major groove of the double stranded DNA (B) minor groove of the double stranded DNA (C) […]