# Recent activity

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Q.8 In a batch culture of Penicillium chrysogenum, the maximum penicillin synthesis occurs during the lag phase exponential phase stationary phase death phase
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Q24 The reactions leading to the formation of amino acids from the TCA cycle intermediates are carboxylation isomerization transamination decarboxylation
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The statistical frequency of the occurrence of a particular restriction enzyme cleavage site that is 6bases long can be estimated to be once every 24 hm once ever)r 256 bases once every 1024 bases once every 4096 bases
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Q.22 The algorithm for BLAST is based on Dynamic Programming Hidden Markov Model k-tuple analysis Neural Network
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Reactions between antibodies and antigens that are detected by precipitate formation in an agar gelare referred as immunoprecipitation assay immunodiusion assay immunoaggregation assay immunoxation assay
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Q.20 Prior exposure of plants to pathogens is known to increase resistance to future pathogen attacksThis phenomenon is known as systemic acquired resistance hypersensitive response innate immunity" antibody mediated response
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Q. 19 The 5 ends of the mature forms of the prokaryotic mRNAs and tRNAs are a triphosphatc group in mRNAs and a monophosphate group in tRLNAs triphosphate groups in both mRNAs and tRNAs monophosphate groups in both mRNAs and tRNAs a monophosphate group in mRNAs and a triphosphate group in tRLNAs
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Q. 1 8 Amino acid residue which is most likely to be found in the interior of water-soluble globularproteins is Threonine Aspanic acid Valine Histidine
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Q. l 7 The product(s) resulting from the hydrolysis of maltose is"'are a mixture of a-D-Glucose and B-D-Glucose a mixture of D-Glucose and L-Glucose aD-Glucose only -D-Glucose only
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Q. 16 The 4-amino or 4-keto group of pyrimidine bases is located in the major groove of the double stranded DNA minor groove of the double stranded DNA minor groove of the B form DNA but not the A form DNA major groove of the B form DNA but not the A form DNA
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Q. 15 Which of the following essential element(s) is.-'are required as major supplement to enhance thebioremediation of oil spills by the resident bacteria? Sulfur Nitrogen and phosphorus Iron Carbon
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Q14 A bacterium belonging to cocci group has a diameter of 2 pm The numerical value of the ratio ofits surface area to volume (in rim-1) is
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Q. 13 Gram-positive bacteria are generally resistant to complement-mediated lysis because thick peptidoglycan layer prevents insertion of membrane attack complex into the irmer membrane Gram-positive bacteria import the membrane attack complex and inactivate it ... is degraded by the proteases produced by the Gram-positive bacteria Gram-positive bacteria cannot activate the complement pathway
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Q. 12 The degree of reduction of ethanol is
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Q.11 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) mVD msz 7IND2 none of these
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Q. 10 Which of the following is employed for the repeated use of enzymes in bioprocesses? polymerization immobilization ligation isomerization
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The most plausible explanation for a sudden increase of the respiratory quotient (RQ) of amicrobial culture is that cells are dying yield of biomass is increasing the fermentation rate is increasing relative to respiration rate the maintenance rate is decreasing
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Q.7Ifthe dissociation constant for solute-adsorbent binding is K o: the retention time of the solute in achromatography column increasw with increasing K D decreases with increasing K D passes through minimum with increasing KD is independent of K D
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Q6 The unit for specic substrate consumption rate in a growing culture is(m (mi .9 "2;(C); (D)9M o'es
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Q5 The solution to the following set of equations is2x+3y=44x+6y=0 JFO, }=O x=2, y=0 4x: -6y No solution
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Q4 The limit ofthe function e'ZSm (t) as t > so, is
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Q3 The solution for the following set of equations is,5x+4y+102=13x+3y+z=74x2y+z=0 1:2, 1:1,F1 x=l:}=2,rO 1:1,}:0, 2:2 1:0,}=1= 72
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Q.2 If an unbiased coin is tossed 10 times: the probability that all outcomes are same will be x10'S
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Q.1 . , _ 1 -4The elgem alues of A [2 _3] are 211' -1, -2 -1:2i non-existent
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Q22 A chemostat is operated at a dilution rate of 0.6 h]. At steady state: the biomass concentration inthe exit stream was found to be 30 g 11- The biomass productiviq' (g 1"h'1) after 3h of steady stateoperation will be
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At the end of a batch culture. glucose solution is added at a flow rate of 200 nil-"h. If theculture volume after 2 h of glucose addition is 1000 ml. the initial culture volume (in 1111)is
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Choose the statement(s) where the underlined word is used correctly: (i) A $\underline{prone}$ is a dried plum. (ii) He was lying $\underline{prone}$ on the floor. (iii) People who eat a lot of fat are $\underline{prone}$ to heart disease. (i) and (iii) only (iii) only (i) and (ii) only (ii) and (iii) only
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Q54 The value of detenninant A given below is/"3 16 810 2 2\0 o 16.,A:
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0.1 The volume ofa sphere ofdiameter 1 unit is than the volume ofa cube ofside 1 unit. least less lesser low
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Q2 The unruly crowd demanded that the accused be without trial. hanged hanging hankering hung
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0.4Fact: If it rains. then the eld is wet.Read the following statements:(i) It rains(ii) The eld is not wet(iii) The eld is wet(iv) It did not rainWhich one of the options given below is NOT logically possible based on the given fact? If(iii) then (iv). Il'(i), then (iii). If(i)then(ii). It'(ii),then(iv).
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Q5 A window is made up of a square portion and an equilateral triangle portion above it. The base ofthe triangular portion coincides with the upper side of the square. If the perimeter of the indow is6 m, the area of the Window in m is 1.43 2.06 2.68 2.88
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Q.6Students taking an exam are divided into two groups: P and Q such that each group has the samenumber of students. The performance of each of the students in a test was evaluated out of 200marks- It was observed that the mean of group P was 105, while that of group ... Most students of group Q scored marks in a narrower range than students in group P. The median of the marks of group P is 100.
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Q] A smait city integrates all modes of transport, uses clean energy and promotes sustainable use ofresources. It also uses technology to ensure safety and security of the city, something \xhich criticsargue, will lead to a suryeillance state-Which of the following can be logically inferred from the ... smart cities promote sun'eillance. (i) and (iv) only (ii) and (iii) only (i\) only (i) 0111."
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Q.8 Find the missing sequence in the letter series.B, PH, LNP, SUWY TUVW TVXZ TWXZ
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Q9The binary operation I: is dened as a :1 b = ab+(a*b), where a and b are any two real numbers.The value of the identity element of this operation dened as the number x such that a : x = a, forany a, is o 1 2 10
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Q.10 Which ofthe following curves represents the functron )' = ln(|e["" (Ix JI] I) for lx < 237Here, x represents the abscissa and y represents the ordmate.'/V\/