GATE 2024 BT – Previous Year Questions with Solutions
All 65 questions of GATE 2024 BT with answers and explanations. Read each question, then practise it by topic or as a full paper.
Practise this paper in The GATE Grind →
- Question 1 – If '→' denotes increasing order of intensity, then the meaning of the words [dry → arid → parched] is analogous to [diet → fast → ]. Which one of the…
- Question 2 – If two distinct non-zero real variables x and y are such that (x+y) is proportional to (x-y) then the value of xy
- Question 3 – Consider the following sample of numbers: 9, 18, 11, 14, 15, 17, 10, 69, 11, 13. The median of the sample is
- Question 4 – The number of coins of ₹1, ₹5, and ₹10 denominations that a person has are in the ratio 5:3:13. Of the total amount, the percentage of money in ₹5…
- Question 5 – For positive non-zero real variables p and q, if (p2+q2)= p+ q+2 3, then the value of p4+q4p2q2 is
- Question 6 – In the given text, the blanks are numbered (i)−(iv). Select the best match for all the blanks. Steve was advised to keep his head (i) before heading…
- Question 7 – A rectangular paper sheet of dimensions 54 cm × 4 cm is taken. The two longer edges of the sheet are joined together to create a cylindrical tube. A…
- Question 8 – The pie chart presents the percentage contribution of different macronutrients to a typical 2,000 kcal diet of a person. The typical energy density…
- Question 9 – A rectangular paper of 20 cm × 8 cm is folded 3 times. Each fold is made along the line of symmetry, which is perpendicular to its long edge. The…
- Question 10 – The least number of squares to be added in the figure to make AB a line of symmetry is
- Question 11 – In adsorption chromatography, the adsorption of uncharged solute molecules onto a silica-based stationary phase is by .
- Question 12 – The transfer function of a process is G(s) = racK p au p s + 1, where K p is the gain and au p is the time constant. This is a process.
- Question 13 – Which one of the following statements is correct in the context of thermodynamics?
- Question 14 – Which one of the following statements is correct about Reynolds Number (N Re) in a stirred tank bioreactor?
- Question 15 – The relationship that involves the exchange of nutrients between two different species for their mutual growth is called .
- Question 16 – Mendel's 'law of segregation' applies to the segregation of during gamete formation.
- Question 17 – Co-translational translocation of proteins is observed in .
- Question 18 – 2-mercaptoethanol breaks the covalent bond between light and heavy chains of an immunoglobulin molecule.
- Question 19 – During normal embryonic development of the mice paw, elimination of cells from the inter-digital space is due to .
- Question 20 – A cultured skin fibroblast cell of a goat 'P' was fused with an enucleated ovum of a goat 'Q'. The resultant activated early embryo was then…
- Question 21 – Which one of the following bacteriophages has a genome composed of single stranded circular DNA?
- Question 22 – Which one of the following is an insect cell line?
- Question 23 – Which one of the following is the basic principle of Sanger's DNA sequencing method?
- Question 24 – An element that is present in a nucleotide but not in a nucleoside is .
- Question 25 – Krebs (TCA) cycle is pathway.
- Question 26 – If a denatured protein of human origin is injected into a rabbit, antibodies generated will recognize the structure of the protein.
- Question 27 – All pseudogenes DO NOT code for a .
- Question 28 – A value of k for which the linear equations (k-1)x + 3y = 0 and 2x + ky = 0 have a non-zero solution is .
- Question 29 – The value of the series 1 + x + 2 x + 3 x + at x = 4 is .
- Question 30 – The solution of the differential equation dydx = y + e-x that satisfies y(0) = -12 is .
- Question 31 – The six faces of a cube (die) are numbered as 1, 2, 3, 4, 5 and 6, and it is rolled once. An outcome is the observed number on the top face. If the…
- Question 32 – Let OR be the vector that is perpendicular to the vectors OP = 2 i - 3 j + k and OQ = -2 i + j + k. If the length of the vector OR is 3, then is .
- Question 33 – The degree of reduction (reductance) for oxalic acid (C 2H 2O 4) is .
- Question 34 – If the rate at which E. coli divides is 0.5 h-1, then its doubling time is h.
- Question 35 – The decimal reduction time of a microbe during sterilization at 120 oC with a first order thermal death rate constant of 1 min-1 will be min (rounded…
- Question 36 – Match the disease (Column I) with its biological vector (Column II). Column I Column II --- --- P. Chagas disease 1. Tsetse flies Q. Trypanosomiasis…
- Question 37 – Match the industrial enzyme (Column I) with its application (Column II). Column I Column II --- --- P. Lipase 1. Maltose syrup production Q. Ficin 2.…
- Question 38 – Match the enzyme (Column I) with its corresponding function (Column II). Column I Column II --- --- P. Primase 1. RNA dependent RNA synthesis Q.…
- Question 39 – Match the item (Column I) with its corresponding use (Column II). Column I Column II --- --- P. Glutamine 1. Detachment of adherent cells Q. Trypsin…
- Question 40 – Match the chemical (Column I) with its use (Column II). Column I Column II --- --- P. Diethylpyrocarbonate 1. Chelation of magnesium ion during DNA…
- Question 41 – Match the item in Column I with the corresponding technique in Column II. Column I Column II --- --- P. Blue laser 1. Electron microscopy Q. Tungsten…
- Question 42 – Match the genetic disorder (Column I) with its molecular basis (Column II). Column I Column II --- --- P. Sickle-cell anemia 1. Mutation in nucleotide…
- Question 43 – The evolution of wings in bats and insects is an example of evolution.
- Question 44 – Which of the following statements is/are correct about an uncompetitive inhibitor of an enzyme?
- Question 45 – Which of the following plant-based secondary metabolites belong(s) to the class of alkaloids?
- Question 46 – Which of the following features help(s) in distinguishing alleles using restriction fragment length polymorphism (RFLP)?
- Question 47 – Which of the following is/are considered as biotic elicitor(s) in plant cell culture?
- Question 48 – Under which of the following conditions, a mammalian somatic cell fails to undergo mitosis during cell cycle?
- Question 49 – Which of the following is/are synthetic auxin(s) that does/do NOT occur naturally?
- Question 50 – Which of the following statements regarding the below mentioned mRNA sequence is/are TRUE? 5'-UGAUGAGCCUUAACCGGGAACGAAUUUAAG-3'
- Question 51 – Which of the following conditions induce(s) the expression of β-galactosidase gene in the lac operon?
- Question 52 – Which of the following factors can affect the growth of a microbial culture in a batch cultivation process?
- Question 53 – Under complete cell washout condition in a chemostat with sterile feed, which of the following statements is/are correct?
- Question 54 – Fermentation medium is cooled from 121 oC to 30 oC in a double pipe heat exchanger. If cold water is flowing in the counter-current direction and is…
- Question 55 – Aspergillus niger is grown in a 10,000 L stirred batch bioreactor under aerated conditions to produce citric acid. At steady state oxygen transfer…
- Question 56 – Ethanol is produced in a 10,000 L stirred bioreactor using an impeller of diameter 1 m. The density and viscosity of fermentation broth are 1000 kg…
- Question 57 – The free energy change of ATP hydrolysis at 25 oC is -32.2 kJ mol-1. The free energy change for hydrolysis of α-glycerophosphate to glycerol is -8.2…
- Question 58 – E. coli is inoculated in a shake flask containing nutrient rich medium. The initial number of viable cells in the medium is 102. After few hours, the…
- Question 59 – A fermentor is filled with medium at a rate of 1 L min-1. A leak develops at the bottom of the fermentor when the medium in the fermentor reaches 200…
- Question 60 – A fed batch process is running at quasi-steady state with respect to substrate and biomass concentration. At 2 h, the culture volume is 500 L with a…
- Question 61 – Consider scale-up of fungal fermentation from a 20 L model-type to 20,000 L prototype stirred tank reactor. The model-type and prototype have the same…
- Question 62 – If v = pmatrix2\\2\\2pmatrix is an eigenvector of the matrix pmatrix1&2&3\\1&2&3\\1&2&3pmatrix corresponding to the non-zero eigenvalue, , then the…
- Question 63 – The value of the limit xx2(1 + 2024x) is .
- Question 64 – Let y(x) = x2 x for x > 0, be a solution of x2d2ydx2 + 4y = xdydx. Then the value of is .
- Question 65 – The absolute relative error in evaluating the integral 01 x2dx by the trapezoidal rule with the step size 0.25 is % (rounded off to 2 decimal places).