csir - net paper dec,2008

8/8/2019 CSIR - NET Paper Dec,2008

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Memory based CSIRNET Paper Dec. 2008

Address: 27H/2 Ground floor Jia Sara, Near IIT, Hauz Khas, New Delhi-110016, Website: www.helixacademy.com Page 1

1. The mode of sex determination in human isa. Haploidy diplody b. XX-XYc. ZZ-ZW d. Genic balance2. A charge particle having mass m andcharged q is moving through constant electricfield E the time to cover given path willdepends ona. m-1/2 b. q-1/2 c. E-1/2 d. M-1/2q-1/2E-1/2

3. Which of the following pair is isotones?a. 3H, 4He b. 1H, 3Hc. 140Ba, 140Th d. 15 N, 14 N14. The region of visible light which is most usefulfor photosynthesis isa. Blue, red b. Green, redc. violet, blue d. Green, blue 5. Why the inner planets surfaces are made upof rocky denser metals, whereas the outerplanets are made of mainly light gases which islesser denser then the outer planets.

a. Inner planets are formed earlier b. Sun rays pushes gases far a partc. Centrifugal force attract denser planet near sund. Inner planets are near to sun, thus hightemperature has blown most of light gases.6. In the following algorithm loops how manytimes internal loops will be executed

i=0l=0

while i=1 to 100I = 1, 100, 2l = 1, 100, 2stopa.100 b. 151c. 501 d. infinity7. Correct algorithms for computing distance(x=u*t) for time1 to 100 sec, will be (considering

constant speed)a. Do I = 1 to 100 b. Do t = 1 to 100

x(t)=x* I x=u*tI = i+1 t=t+1

c. Do I = 1= 100 d. Do t = 1 to 100x(t)=u* t x=u*tI =i+1 t = u + 1

8.Correct graphical representation for frequencyof Indian population according to their annualincome is:

9. What would be energy released on breakingH-H covalent bond (generally energy of covalent

bond lies in between 100-200Kcal/mol)a. 5x10 -19l/mol b. 1x10 -19l/molc. 4.36x105l/mol d. 8x10 19l/mol10. A current (1) carrying solenoid of length l,radius a, the charge in magnetic field along axisof solenoid r will be

11. Among the following maximum reflectance s(albedo effect ) will be observed ata. Ocean b. Ice covered landc. Vegetation land d. Deserts12. Among the following which salt occurs inhuman bodya. NaCl b. KCNc. HCN d. H 2SO413. Rock A is layered on rock B and rock Cis intrusion through A and B as shown indiagram the correct explanation for diagram is:


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a. A is younger than B & C is younger than A b. B is younger than A & C is younger than Bc. C is younger than A & C is younger than Ad. C is younger than B & A is younger than C14. Current passing through A-B in amperes asshown in diagram will be

a. 0 b. 1c. 2 d. 0.515. Minimum daily variation in temperature willbe observed at

a. Bangalore b. Shimlac. Coachin d. Nagpur 16. A race was held between Hare & Tortoise,Hare run fast and took rest in middle and thencompleted race while tortoise moved at constantspeed and completed race earlier then hare. Thecorrect representation of this story is(represent tortoise and .forthe hare)

17. A bacterial population become half after oneminute, reduction in population depends onpopulation at time t, what would the remainingpopulation after 2 min of original population.a. b. c. 1/8 d. 1/1618. An apples fall from a tree, to hit apple from abullet gun fired (distance between apple and gunis 100 m both are at height 5 m)a. exactly at apple

b. slightly beneath the applec. slightly above the apple

d.1 m below original position of apple

19. The algorithm computesx=0N=0T=0

For i= 1 to NSum (X)=x+1

STOPa. Computes sum for array N

b. Computes product of array N

c. Computes factorial of array Nd. Calculates sum of any integers20. Fog, which is commonly observed duringwinter and causes problem to flight take off mainly seen ata. In Winter

b. In Summer with pollutionc. High altitude with no pollution


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d. Low latitude without pollution

21. If 7g of NaoH is dissolved in 350 ml water themolarity of resultant solution will bea. 0.5M b. 2.5Mc. 50M d. 25M22. Correct graphical representation for functionx + sin x (x>0)

23. In equation sin 2x, value of x cannot bea. 0 b. -1c. 1 d. 224. If a rope is tied around the radius R of earth if the rope has to be tied 1m above theground then additional length of rope requiredwould bea. R+1 b. R+2c. 2 d. 25. What should be effect of increasing humidityon rate of transpiration?a. Rate of transpiration will decrease

b. Rate of transpiration will increasec. Initially low then it will be highd. It will be unaffected26. Graphical representation for rate kinetics forenzyme catalysed reaction will beTime (sec.) 0 30 60 90 120K (rate) 8.00 5.35 3.5 2.15 1.15

27. Determinants for matrixA= 2{1 -i}

[+I 1]a. 5 b. 4c. 9 d. 028. Possible arrangement for character of wordMOTHER such that vowels remain together.

a. 120 b.140c. 240 d. 28029. The data of rain fall for five consequetivedays in Hyderabad is given below

2008 0,0,0,0,1002007 0,20,20,40,0

Which statement is correct ?a. Lesser variation in rainfall was observed in 2007as compare 2008 at Hyderabad

b. In 2008 Hyderabad experienced more rainfallc. In 2007 Hyderabad experienced more rainfall

d. Variation in rainfall in 2007 and 2008 was equal30. A racer completes 100m in very small timeanother racer who runs 200m covers distance intime slightly greater than double of 100 m race,Both achieve their maximum velocity at 50 m,the correct graphical for above situation will be:

31. You would removed seed from pea pods;some pods have more number of seed while other


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less, the correct graphical representation fornumber of seed in pea will be

32. In graph line representing y=-ax=c(value of xand c are +ve)

a. A b. Bc. C d. D33. Maximum evaporation in ocean will occur ata. Poles b. Equator c. Wetlands d. Evenly at all places34. Short wave can be received at longer distanceduring radio transition as compare to mediumwave becausea. Short wavelength can be reflected by ionosphere.

b. Medium waves are transmitted across spacec. Short wavelength are absorbed ionosphered. Medium wavelength can not be bend35. If = 1 when I = j and 0 when i j. Thansum of . If it takes values of i and j from 1,2and 3 respectively.a. 1 b. 2c. 3 d. 436. NaCl can be electrolyzed on electrode, butethanol can not becausea. Ethanol has covalent bond

b. Ethanol is polar

c. Ethanol has hydrogen bondingd. Ethanol is electrically neutral

37. Currently among the following which is usedas a fuel for nuclear reactor.a. 232Th b. 238Puc. 238U d. 235U38. Which of the following is most porous:a. Sand b. Clayc. Loamy d. Granite39. Which graph represents the endothermicreaction with minimum activation energy? (ASubstrate B product)

40. The process of photosynthesis which leads toformation of glucose is a type of a. Oxidation b. Reductionc. Condensation d. Fixation41. Which techniques can not be utilized fordetection of microdeletion on Y chromosomea. Karyotyping b. PCR c. Micro array d. Hybridization

42.Among the following which plant family hasbeen extensively used for phyto-remediationa. Poaceae b. Brassicaceaec. Malvaceae d. Anonaceae43.Defective gene in Amyotrophic lateralsclerosis isa. Rb b. P53c. bCl2 d. TGF

44. A perfuse kidney isolated fromorganism.What would be the effect of applyingincreasing arterial pressure on renal filtrationrate?


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75. Individuals having X chromosome and shortarm of Y chromosome are male while individualshaving X chromosome and long arm of Ychromosome are female . This shows thata. genes for maleness are located on short arm of Ychromosome

b. genes for maleness are located on long arm of Ychromosomec. genes for maleness are located on X chromosomed. male determining genes are not located on Ychromosome76. If a cell has c as the DNA content of cell andn as the number of chromosomes, then justimmediately before the cell division in case of mitosis what would be the value of c and na. 2c and 4n b. 4c and 2nd. 4c and 4n d. 2c and 2n77. Which equation best describes the bacterialpopulation growtha. dN/dt=KN b. dN/dt=Nc. dt/dN=KN d. dN/dt=K

78. Genetic disorder xeroderma pigmentosum isdue to error ina. base exicisiom repair mechanism

b. nucleotide exicisiom repair mechanism

c. direct repair mechanismd. DNA replication mechanism79. In Lederbergs experiment which one of thefollowing option they have used to prove theirhistorical experimentsa. one auxotroph and one prototroph

b. two auxotroph and two prototrophc. two auxotrophd. two prototroph80. Among the following which is inhibitor of 80S ribosome

a. tetracycline b. streptomycinec. cyclohexamide d. chloromphenicol81. Diphtheria toxin causesa. ADP ribosylation of EF-2

b. ADP of ribosylation of EF-1 c. Blocking activity of RNA polymerased. Blocking DNA replication processes

82. Atrial natriuretic factor secreted from atriaisa. Hormone b. Neurotransmitter c. Enzyme d. Growth factor

83. Dorsal mutant in drosophila will result ina. Dorsalization of ventral side

b. Ventralization of dorsal sidec. There would be no effectd. Anterior posterior pattern formation will beeffected84. Among the following which is not moniteredas daily potential pollutanta. CO b. CO 2 c. SO2 d. NOx

85. A major functional difference between thesuccinyl CoA-synthetase of plant and animal cellmitochondria is that ita. does not produce ATP in plant cell

b. produce UTP in plant cellc. produces ATP in plant GTP in animald. produces GTP in plants and ATP in animals86. Intracellular negative potential andextracellular positive potential occurs ina. all cells b. neurons

c. kidney cells d. liver cells

87. Quantitative inheritance definesa. variation in phenotype

b. variation in genotypec. variation in environmentd. variation in genes 88. Oxygenase activity of RUBISCO generatesa. Two molecules of PGA(3C)

b. Two molecules of phosphoglycolate (2C)c. One molecule each of PGA and phosphoglycolate

d. Two molecules each of PGA and phosphoglycolate89. Plant family having characteristic umbelinflorescence isa. Asteraceae b. Acanthaceaec. Araceae d. Poaceae90. Dendrogram in numerical taxonomyrepresents


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a. Phenetic similarties b. Phlogenetic similartiesc. Evoltionary similarties d. No similarties91. A plant with genotype r + h+/r - h- was testcrossed . out of total 280 progeny 260 are r + h+/r - h- and r - h -/r - h-. the recombination frequencywill bea. 92.8 b. 46.4c. 7.2 d. 3.692. Genetic mapping reveals that distancebetween two genes A and B is 10 cM. What ischance of getting Aabb progeny if AaBb is testcrossed ?a. 5% b. 10%c. 45% d. 90%93. The regulators of circadyn rythmas in plantsisa.phycobillins b. phytochromesc. phototropins d. cryotophores94. The following pedigree represents theinheritance of rare disorder

based on the above pedigree, what is the mostlikely mode of inheritance?a. autosomal dominant

b. X linked recessivec. X linked dominantd. autosomal recessive95. Among the following which group hasmaximum number of endangered and criticallyendangered species as per IUCN red data list?a. Amphibian b. reptilec. mammals d. aves

96. which of the following is not intrinsic floura. tryptophan b. phenyl alaninec. tyrosine d. histidine97. In plant lateral root initiates froma. Pericyclic b. Cortexc.Pith d. Endodermis

98. Germination of moth bean in dark is anexample of a. photomorphogenesis

b. sktomorphogesisc. de-etiolationd. shadding effect99. Rate of molecular evolution would be least ina. non-synonymous change in codon

b. synonymous change in codonc. flanking regions of genesd. introns of genes

100. Among the following which molecule hasbeen frequently used for molecular systematica. Insulin b. Cytochrome Cc. Globin d. Collagen

101. Which is correct hierarchial sequence intaxonomy?a. Phylum-class-order-family-genus

b. Class-phylum-order-family-genusc. Phylum-class-family-order-genusd. Phylum-class-order-genus-family

102. When oxygen hemoglobin curve shift toleft representsa. Decrease in pH

b. Decreasing in CO 2 levelc. Rise in concentration of 2,3 BPGd. more affinity for CO 2

103. Covalent bond formation between twoatoms takes place bya. Transfer of electron from one atom to other

b. One side sharing of electronsc. Electron sharing by both interacting atomsd. Affinity between two atoms

104. As we move from one geographic region tonext neighbouring region, species diversity tendsto change. It is termed asa.

b. c. d.


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105. Which of the following curve represents thegeneral relationship between population size (M)and growth rate (dM/dt) for logistically growingpopulation

106. Which factor is least responsible for geneticdrift?a. migration b. founder effectc. bottle neck d. restriction of resources107. Inspite of the prevalence of herbivory, theearth continues to be largely green becausea. the number of herbivore species is low

b. herbivores are very inefficient feedersc. herbivore numbers are kept low by their predatorsd.herbivory promotes plant growth108. Biomass turnover time is the ratio betweenbiomass and productivity of an ecosystem. whichof the following forests should have highestbiomass turnover time?a. tropical dry forest

b. tropical wet forestc. temperate deciduous forestd. boreal forest

109. Smooth movement of bacteria duringchemitaxis is due toa. due to tumbling

b. phosphorylation of cheYc. movement of H + across plasma membraned. phosporyl ation of che A110. An oligonucleotide DNA sequence taggedwith fluroscent tag used to identified unknowngene by hybridization is termed asa. Probe b.Reporter genec. Ligand d. C-DNA

111. Mucous which covers the epithelial lining of stomach and protects it form protease activity issecreted bya. goblet cells b. parietal cellc. microvilli d. aciner cells112. Chitin occurs in cell wall of a. bacteria b. arthropodsc. fungus d. mollusc

113. Starling bird orient themselves by sunlightduring migration. If they are kept in capativitywith artificial light source form one direction,thena. they will stop migration

b. they will orient towards light sourcec. they will orient themselves with change in 15 0angle every hour from direction of lightd. moves all around the artificial light114. Maximum density of dopamine and noradregenic receptor occurs ata. cerebellum b. cerebellemc. medulla oblongata d. spinal cord115. In a population with two alleles b and B

having allele frequency 0.7 and 0.3 in Hardy-Weinberg equilibrium, how many individuals ina sample of 250 can be expected to be

heterozygous (bB)?a. 52 b.105c. 21 d.42

116. The emergence of polarity of an embryo isthe result of a. positive and negative charges interacting in earlydevelopment

b. cytoplasmic differences between cellsc. cytoplasmic determinants within cellsd. all of the above

117. Characteristic dominant grasses inBrahamputra , Ganga and Punjab plainsrespectively area. Alphinia, Eichinochloa, Cenchrus

b. Saccharus, Alphinia, Sachharumc. Cenchrus, Eichinochioa, Sachharumd. Sacharum,Cenchrus, Alphinia


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118. The principle for formation of image inphase contrast michroscopya.interference of light waves

b. negative staining of objectc. use of fluorescent probesd. Enhancing contrast by differentiating the changein the phase of light passed through specimencoming from angle of cone of light enteringthrough objective lens119. Yeast with petite colony when crossed withwild type generates no petite colony. The mostprobable mode of inheritance isa. chloroplast b. mitochondriac. episomal d. nuclear 120. Which statement is least likely to beobserved amongst the animals showing extensiveparental carea. Male polygamous

b. Sexual dimorphismc. difference in body size of male and femaled. No investment in selection of mates by female

121. Which is true for - oxidation of fatty acidsa. Formationof malonyl CoA

b. Formation of malonyl ACPc. Transport of acyl CoA into mitochondriad. Use of NADPH 2 122. When release factor binds to stop codon onm-RNA during translation , the synthesizedpeptide chain is transferred toa. t-RNA b. Water c. H+ d. Amino acids123. A protein which is to be degraded inproteasome is tagged witha. polyglycine b. polyprolinec. ubiquitin d. formyl methionine

124. The major role of 2,3 BPG formed duringglycolysis in RBC is for hemoglobin isa. Increasing affinity for oxygen

b. Decreasing affinity for oxygenc. Increasing affinity for CO 2d. Decreasing affinity for CO 2

125. In which biogeographic region you wouldfind Niligiri-tahr treesa. Shola grasslands

b. Nilgiri forestsc. Shola grasslands and Nilgiri forestsd. At high altitudes of south-western ghats

126. Globular protein when treated with organicsolvent get denatured. The main interactionwhich is affected on treatment with organicsolvent isa. Hydrogen bonds

b. Covalent bondsc. Ionic interactionsd. Hydrophobic interactions

127. In hybridization experiment a plant showsphenotypic ratio of 15 : 1. how many genescontrol the trait for observed phenotypic ratio?a. one b. twoc. three d. polygene

128. Which anti cancerous drug is obtained fromcatharanthous roseus?a. taxol b. vincristimec. colchicines d. serpentine

129. Bacteria divides bya. binary fission b. mitosisc. fragementation d. meiosis130. Location of Glutamate synthase, animportant enzyme in nitrogen assimilation isa. Only cytoplasm

b. Only chloroplastc. Both in cytoplasm and chloroplastd. In endoplasmic reticulum

131. Shigella enters into host cell by process of

a. cell cell fusion b. calthrin coated pitsc. by exploiting host cell organallesd. phagocytosis132. Which radioisotope is generallyincorporated in thymine to study DNAreplication processa. 32P b. 35S


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c. 3H d. 14C133. Which techniques is used to study de novaRNA synthesis?a. Southern bloting b. Northern blotingc. Microarray d. RT-PCR 134. Enzymes accelerates rate of reaction bya. Lowering number of transition states

b. Lowering the activation energy of highesttransition statec. Providing energy to substrated. Providing more chance to substrate to reacttogether 135. Enzymes do not interfere witha. Free energy of reaction

b. Rate of reactionc. Activation energy of transition stated. Reaction equilibrium136. Birds beside lungs highly branched air sacs.the major function of air sac is toa. increase surface area for gas exchange

b. help in ventilation during inhalationc. help in ventilation during exhalationd. help in ventilation during both inhalation andexhalation

137. Among the following which activity is

absent in bacterial DNA polymerase Ia. 5 3 polymerase activity

b. 3 5 polymerase activityc. 5 3 exonuclease activityd. 3 5 exonuclease activity138. In population of ten million individual birthrate is 19 per 1000 and death rate is 14 per 1000.annual rise in population would bea. 50,000 b. 5,000c. 14,000 d. 5,00000139. The most probable place where life would

have originateda.outer space b.barren rocksc. in oceansd.deep hydrothermal vents

140. A cross between a red eyed male fly andwhite eyed female fly produces red eyes female

and white eyed male progenies, While reciprocalcross produces all offspring with red eyes. Thetrait for eye color isa. Sex linked traits

b. Sex influenced traitc. Sex linked homogametic maled. Sex linked heterogametic male

Note: For Solutions of this Paper contact to Helix Academy Helix Academy is not responsible for any error and the differences in this memory based Paper.

27H/2, Jia Sarai, Near IIT ,Hauz Khas New Delhi-16contact:-011-32433387Email: [email protected]

[email protected]

Date and Time of the Commencement of Orientation Class for June Exam:

06th Jan, 2009 (Tuesday) at 2.00 p.m.

20th Jan, 2009 (Tuesday) at 2.00 p.m.


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csir - net paper dec,2008

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