Tag: GATE Biotechnology Previous Year Papers with Solutions

Q.36 In leguminous plants, both the rhizobium genes and the plant genes influence nodulation and nitrogen fixation. Which one of the following functions is NOT encoded by the host plant […]

Q.35 Genomic DNA isolated from a bacterium was digested with a restriction enzyme that recognizes a 6-base pair (bp) sequence. Assuming random distribution of bases, the average length (in bp) […]

Q.34 A single stem cell undergoes 10 asymmetric cell divisions. The number of stem cells at the end is ________ Single Stem Cell 10 Asymmetric Divisions: Stem Cell Count Explained […]

Q.33 The absorbance of a solution of tryptophan measured at 280 nm in a cuvette of 2.0 cm path length is 0.56 at pH 7. The molar extinction coefficient (ε) […]

Q.32 The variable z has a standard normal distribution. If P(0 ≤ z ≤ 1) = 0.34, then P(z2 > 1) is equal to (up to two decimal places) ________ […]

Q.31 The determinant of the matrix ( 4 -6 -3 2 ) is ________ Introduction Matrices are widely used in algebra, engineering, physics, and computer applications. One of the most […]

Q.30 Which one of the following plant secondary metabolites is a natural insecticide?(A) Digitoxin (B) Pyrethrin (C) Salicylic acid (D) Avenacin A-1 Pyrethrin is the plant secondary metabolite that acts […]

Q.29 Which one of the following is the solution for cos²x + 2cosx + 1 = 0, for values of x in the range of 0° < x < 360°? […]

Q.28 Identify the character based method(s) used for the construction of a phylogenetic tree.P. Maximum parsimonyQ. Neighbor joiningR. Maximum likelihoodS. Bootstrapping(A) Q only (B) P and R only(C) Q and […]

Q.27 Which one of the following techniques is used to monitor RNA transcripts, both temporallyand spatially?(A) Northern blotting(B) In situ hybridization(C) Southern blotting(D) Western blotting Answer: (B) In situ hybridization […]