View note:Gate-Biotechnology-2014-solved-question-paper



Questions of this subject!.

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1)The active site in the alpha/beta barrel structures is usually located (-Gate Biotechnology 2014 question paper

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2)The amino acid substitution matrices in decreasing order of stringency for comparing protein sequences are: (-Gate Biotechnology 2014 question paper)

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3)A dioecious plant has XX sexual genotype for female and XY for male. After double fertilization, what would be the genotype of the embryos and endosperms? (- Gate Biotechnology 2014 question paper)

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4)Which of the following statements with respect to the orientation of the nitrogenous bases to the pentose sugars, and the puckering of the sugar, is correct? - Gate Biotechnology 2014 question paper

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5)If a plant is shifted to cold temperature, which of the following changes would take place in its membrane? - Gate biotechnology 2014 question paper

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6)Lysine is being produced in a lab-scale reactor by a threonine auxotroph. After 2 weeks of operation it was observed that the concentration of lysine in the reactor was gradually decreasing. Microbiological assays of reactor samples showed absence of

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7)In a genetic cross between the genotypes WWXX and wwxx, the following phenotypic distributions were observed among the F2 progeny: WX, 562; wx, 158; Wx, 38; and wX, 42. Likewise, a cross between XXYY and xxyy yielded the following results: XY, 675; x

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8)Match the immunoglobulin class in Group I with its properties in Group II: (-Gate Biotechnology 2014 question paper)

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9)Match the items in Group 1 with Group 2: (-Gate Biotechnology 2014 paper)

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10)For their efficient translation, eubacterial mRNAs possess a Shine-Dalgarno sequence for its recognition by an anti-Shine-Dalgarno sequence (ASD) in the ribosomes. The correct statement is: (-Gate Biotechnology 2014 question paper)

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11)In an affine gap penalty model, if the gap opening penalty is -20, gap extension penalty is -4 and gap length is 8, the gap score is? (-Gate Biotechnology 2014 question paper)

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12)The percentage SIMILARITIES and IDENTITIES, respectively, between the two peptide sequences given below will be ______ % and _____ %. -Gate Biotechnology 2014 question paper

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13)In a mouse genome, the numbers of functional Vα, Jα, Dβ, Jβ gene segments are 79, 38, 21, 2 and 11, respectively. The total number of possible combination for αβ T cell receptors are ______ x106 . (-Gate Biotechnology 2014 question paper)

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14)The pungency of mustard seeds is primarily due to secondary metabolites such as isothiocyanate and nitrile. The pungency is usually felt only when the seeds are crushed. This is because of? (-Gate Biotechnology 2014 question paper)

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15)Match the following plant sources with their secondary metabolites and medical uses: (-Gate Biotechnology 2014 question paper)

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16)Consider a population of 10,000 individuals, of which 2500 are homozygotes (PP) and 3000 are heterozygotes (Pp) genotype. The frequency of allele p in the population is ________. (- Gate Biotechnology 2014 question paper)

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17)Topological winding number of a 2.0 kb covalently closed circular DNA was found to be 191 with a writhing number of -4. Hence, its LINKING NUMBER and the NUMBER OF BASE PAIR PER TURN when the molecule is laid flat on the surface is ________ and _____

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18)In a relatively large but finite and closed population of sexually reproducing diploid organisms, the frequency of homozygous genotype PP changes from 0.40 to 0.50 and that of pp changes from 0.40 to 0.41 in a span of 10 generations. Which of the fol

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19)The plasmid DNA was subjected to restriction digestion using the enzyme EcoRI and analysed on an agarose gel. Assuming digestion has worked (the enzyme was active), match the identity of the DNA bands shown in the image in Group I with their identity

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20)Triose phosphate isomerase converts dihydroxy acetone phosphate (DHAP) to glyceraldehyde-3-phosphate (G-3-P) in a reversible reaction. At 298 K and pH 7.0, the equilibrium mixture contains 40 mM DHAP and 4 mM G-3-P. Assume that the reaction started w

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21)Cholera toxin increases cAMP levels by: (-Gate Biotechnology 2014 question paper)

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22)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: (-Gate Biotechnology 2014 question paper)

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23)The reactions leading to the formation of amino acids from the TCA cycle intermediates are: (- Gate Biotechnology 2014 question paper)

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24)The statistical frequency of the occurrence of a particular restriction enzyme cleavage site that is 6 bases long can be estimated to be: (-Gate Biotechnology 2014 question paper)

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25)The algorithm for BLAST is based on: (- Gate Biotechnology 2014 question paper)

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26)Reactions between antibodies and antigens that are detected by precipitate formation in an agar gel are referred as: (-Gate Biotechnology 2014 question paper)

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27)Prior exposure of plants to pathogens is known to increase resistance to future pathogen attacks. This phenomenon is known as: (-Gate Biotechnology 2014 question paper)

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28)The 5’ ends of the mature forms of the prokaryotic mRNAs and tRNAs are: (-Gate Biotechnology 2014 question paper)

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29)Amino acid residue which is most likely to be found in the interior of water-soluble globular proteins is: (-Gate Biotechnology 2014 question paper)

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30)The product(s) resulting from the hydrolysis of maltose is/are: (-Gate Biotechnology 2014 question paper)

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31)The 4-amino or 4-keto group of pyrimidine bases is located in the: (-Gate Biotechnology 2014 question paper)

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32)Which of the following essential element(s) is/are required as major supplement to enhance the bioremediation of oil spills by the resident bacteria? -Gate Biotechnology 2014 question paper

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33)Gram-positive bacteria are generally resistant to complement-mediated lysis because: (-Gate Biotechnology 2014 question paper)

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34)The degree of reduction of ethanol is ________. (-Gate Biotechnology 2014 question paper)

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35)Since mammalian cells are sensitive to shear, scale-up of a mammalian cell process must consider, among other parameters, the following (given N = rotations/time, D=diameter of impeller). -Gate Biotechnology 2014 question paper

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36)Which of the following is employed for the repeated use of enzymes in bioprocesses? (-Gate Biotechnology 2014 question paper)

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37)The most plausible explanation for a sudden increase of the respiratory quotient (RQ) of a microbial culture is that: (-Gate Biotechnology 2014 question paper)

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38)In a batch culture of Penicillium chrysogenum, the maximum penicillin synthesis occurs during the: (-Gate Biotechnology 2014 question paper)

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39)Choose the most appropriate word from the options given below to complete the following sentence. (-Gate Biotechnology 2014 question paper: General Aptitude question)

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40)Choose the most appropriate word from the options given below to complete the following sentence. (-Gate Biotechnology 2014 question paper: General Aptitude question)

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41)Which of the following options is the closest in meaning to the sentence below? (-Gate Biotechnology 2014 question paper: General Aptitude)

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42)In any given year, the probability of an earthquake greater than Magnitude 6 occurring in the Garhwal Himalayas is 0.04. The average time between successive occurrences of such earthquakes is ______ years. (-Gate Biotechnology 2014 question paper: Ge

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43)The population of a new city is 5 million and is growing at 20% annually. How many years would it take to double at this growth rate? - (Gate Biotechnology 2014 question paper: General aptitude)

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