Tag: GATE Biotechnology Previous Year Papers with Solutions

Q.26 Standard error is(A) the probability of a type I error in a statistical test(B) the error in estimating a sample standard deviation(C) the standard deviation of a variable that […]

Q.25 Which one of the following statements is true for actin?(A) Actin filament is structurally polarized and the two ends are not identical(B) De novo actin polymerization is a single–step […]

Q.24 Cell type A secretes molecule X into the culture medium. Cell type B in the same cultureresponds to the molecule X by expressing protein Y. Which one of the […]

Q.23 Which one of the following bioreactor configurations is the basis for a trickling biologicalfilter?(A) Stirred tank (B) Packed bed(C) Air lift (D) Fluidized bed Trickling Biological Filter Bioreactor Configuration […]

Q.22 Which of the following technique(s) can be used to study conformational changes inmyoglobin?P. Mass spectrometryQ. Fluorescence spectroscopyR. Circular dichroism spectroscopyS. Light microscopy(A) P only (B) P and S only […]

Q.21 Which one of the following is NOT a principal component of innate immunity?(A) Mucosal epithelia(B) Dendritic cells(C) Complement system(D) Memory B-cells Memory B-cells are not a principal component of […]

Q.20 Which one of the following metabolic processes in mammalian cells does NOT occur in themitochondria?(A) Citric acid cycle (B) Oxidative phosphorylation(C) Fatty acid β-oxidation (D) Glycolysis Glycolysis does not […]

Q.19 Which one of the following is INCORRECT about protein structures?(A) A protein fold is stabilized by favorable non-covalent interactions(B) All parts of a fold can be classified as helices, […]

Q.18 A mixture contains three similarly sized peptides P, Q and R. The peptide P is positivelycharged, Q is weakly negative and R is strongly negative. If this mixture is […]

Q.17 Which one of the following BLAST search programs is used to identify homologs of agenomic DNA query in a protein sequence database?(A) blastp (B) blastn (C) blastx (D) tblastn […]