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CSIR NET JUNE 2006 1

PART-A1 Let there is any numbers f and g and f>anynumber n and n>n 0. f(n)>g(n). Thenf 3n=e log en will bea.

b.c.d.

2 Consider the following program

What would be print if initial value for m andn is 462 and 242a. 22 b. 11c. 13 d. 14

3 Among the following what would beincreasing order of gases dissolved in oceansa. CO 2

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15.If radius of Circle A is 18 and of Circle B is 8and both circle are touching each other andtangent to line AB. Then what would bedistance between A and Ba. 24 b. 28c. 25 d. 32

16. if number n is greater then or equal to 1000and lesser then 10000 (100010000) and itsfactorial f x are separate and members of{0,1,2,3,4,5}, then f x will bea. 6x6x6x6x6 b. 5x6x6x6x6c. 5x4x3x2x1 d. 6x5x3x2

17. Given x-y=1, then the value of x 3-y3 cannot bea. 0 b.c. -1 d.-1/4

18.If a person see five images in mirror of anobject, then the between two mirror will bea. 60 b. 45c. 90 d. 120

19.If u is at midpoint of AB and r is at midpointof BD, then sine of angle UCR will bea. 3/2 b. 1/ 3c. 1/3 d. 3

20.

Mass m 1 is suspended to pulley and connectedto mass m 2. If mass m 1 can move only invertical direction then acceleration for m 1 andm2 will bea.

b.c.d.

21. Among the following which is a gaseoushormonea. Ethylene b. Abscisic acidc. Gibberllic acid d. Auxins

22. Among the following which cannot be a part of a genea. UUUUUUUUU b. AAAAAAAAAc. CATCATCAT d. GCGCGCGCG

23. Conservation of ground water can be doneefficiently bya. Construction of dams

b. Banning tube wellsc. Controlled consumption of ground waterd. Water restoration by checking flow ofrunning water

24. Type of genotype in individual having blood group will bea. I BIo a. I AIo

c. I AIB d. I oIo

25. Among the following which are

programming languagea. C, JAVA, VC

b. EXCEL. MS OFFICEc. ORACLE, WINDOWSd. POWERPOINT, WORD, EXCEL

26. 10 9 Flops are equal toa. 1 giga flop b.1000 flopc. 1 terra flop d. 1 Mega flop

27. Ratio of daughter radioisotope to parentisotope in certain sample was found to be 3:1.If half life of radioisotope is 5 m.y, then theage of sample is

a. 20 my b. 15 myc. 10 my d. 25 my

IFAS, A-318 Shastri Nagar, Jodhpur (+91-98293-59559)

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28. If a sedimentary rock A is 20 m.y old. Ananother rock B is lying over it which isdissected by 10 m.y. intrusive rock. Then theage of rock B will bea. In between 10 m.y and 20 m.y

b. 20 m.yc. 10 m.yd. Lesser then 10 m.y

29. A magnet is suspended near an currentcarrying conductor as shown in diagram

If r is very small the torque acting will be indirectiona. k b. jc. i d. cannot be estimated

30. The oxidative phosphorylation occurs ata. Inner membrane of mitochondria

b.Vacoulec. Cytoplasmd. Chloroplast

PART-B1. Major regulatory step in cholesterol

biosynthesis isa. HMG coenzyme

2. Group of members which aremorphologically identical bur geneticallydifferent are termed asa. Sibling species b. Taxonomic speciesc. Morphospecies d. Biological species

3. Occurrence of similar morphological formsin clade at different interval is termed as

a. Iterative b. Convergentc. Coevolution d. Parallel evolution

4. Group of members which cannot interbreedfreely are termed asa. Biological species b. Taxonomic speciesc. Morphospecies d. Sibling species

5. Which is true for gap junctiona. It is made of connexin protein

b. Allows free movement of large moleculesacross cells

c. made up of two subunit of connexonsd. Movement of gases takes place by gases

6. The mode of action of antiobiotic penicillinisa. It inhibits glycolase moiety of cell wallenzyme

b. Antibode is exclude by membranec. Antibiotic is not allowed to enter the celld. It deactivates membrane transport

7. -diversity is defined as diversitya. Between two different ecosystems

b. Overall large areac. Within a sampling aread. total species richness

8. Speciation occurring due to geographical barrier is termed asa. Allopatric b. Sympatric

c. Parapatric d. Peripatric

9. Diffusion of gas in plant cells is bya. Symplast b. Plasmodesmatac. Apoplast d. Passive transport

10. Among the following which hormone caninduce flowering in short day plants grownunder long duration of lighta. Gibberllic acid b. Auxinsc. Cytokinin d. Abscisic acid

11. If water is oxygenated and inoculated by bacteria, then the graph of BOD with time forduration of five days will be

a. b.

c. d.

12. Probability of occurring similar amino acidsequence in two oligopeptides of length n will

bea. 1/20 n b. n 20

c. 20 n d. 1/n 20

13. The graph between area studied andnumber of species encountered will be

a. b.


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c. d.

14. The type of survivorship curve present inPaleozoic fishes was

a. D b. Bc. C d. A

15.If a nerve extracted is activated in reversedirection by giving impulses and followingreactivity is obtained with time, then the speedof transmission of impulse across the nerve isa. 500m/s 100m/s 10 m/s

b. 500m/s 100m/s 50 m/sc. 100m/s 50m/s 10 m/sd. 200m/s 100m/s 50 m/s

16. Among the following which relationshipshows positive logarithmic interactiona. Generation time and animal size

b. Generation time and longevity of animalc. Animal size and number of offspringd. Longevity and number of offspring

17. Among the following which is not an

characteristic feature of r-selected speciesa. Maturity at later stage b. Large clutch sizec. Small size of offspringd. Maturity at early stage of life

18. If a sequence 5AAA(AAA) n AAAAAC 3was transcribed in cell free system and peptideobtained was partially hydrolyzed withcarboxypeptidase, the result was an Aspargineresidue and oligopeptide. It suggest thedirection of translation wasa. 5-3 b. 3-5a. 3-5 at pH 7.2 d. 5-3at pH 5.4

19.The given graph showsa. Cooperativity b.Lograthimic growthc. Linear rise d. Saturation kinetics

20. Albinos have visual problem in bright light because they lacksa. Melanin b. Rodsc. Cones d. Creatin

21. The percentage of protein coding sequencein E. coli genome isa. 70 % b. 24%

c. 3 % d. 0.2 %

22. If the frequency of recessive allele causingdisease in homozygous recessive condition ina population of 10,000 is 0.04, then thenumber people affected by disease will bea. 16 b. 400c. 3600 d. 496

23. Hard-Weinberg law in a populationrepresentsa. Genotype frequency

b. Allele frequencyc. Heterozygote frequencyd. Homozygote frequency

24. The F + segment of bacteria may betransferred to F - bacteria by the process ofa. Conjugation b. Transductionc. Transformation d. Fragmentation

25. In a genetic test 9: 7 ratio in F 2 generationrepresentsa. Epitasis

b. Co-dominancec. Incomplete dominanced. Complete dominance

26. Periodic toxic algal booms in oceans aredue toa. Dinoflagellates b.Cyanobacteriac. Diatoms d. Green Algae

27. Among the following which is bestindicator of water pollution due mixing ofhuman faecesa. E. coli b. Trypanosoma c. Paramecium d. Bacillus


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28. The main alkaloid obtained for Dioscoreadeltoids isa. Diosgenin b. Digitoxinc. Qunene d. Serpentine

29. If the two or more morphological formsare favored against heterozygotes, such anselection is termed asa. Disruptive b. Directionalc. Stabilizing d. Cyclic

30. It has been observed the bacteria secretestoxin at high population density to check the

population size. This phenomenon is termed asa. Quremsensing

b. Population controlc. Allelopathy

d. Inter specific Competition

31. Dosage compensation in mammal femalesis achieved bya. Methylation of one X chromosome

b. Hyper activation of one X chromosomec. Elimination of one X chromosomed. Hypoactivation of Both X chromosome

32. It has been observed the transfer of certainX segment in XO Caenorhhabditis elegans ,restores female character. It suggest that mode

of sex determination isa. X/A ratio b. XY typec. A/X d. Ploidy difference

33. Number of cycles required to completelyhydrolyze arachodoic acid into acetyl CoA isa. 9 b. 8c. 10 d. 11

34. Endocytic vesicles are usually coated bya. Clathrin b. Lamininc. Desmins d. Actin

35. Which of the following gene is involved inapoptosisa. caspace b. cyl 2c. bxl d. apc

36. Mast cells have receptor fora. Ig E b. Ig Ac. If G d. Ig M

37. Secondary immune response is generateddue toa. Memory cells b. Naive B-cellsc. Naive T-cells d. Natural killer cells

38. Which is true about Mitosis PromotingFactor (MPF)a. concentration cyclically varies duringentire M phase

b. Its concentration can be sensed during Sc. Its concentration can be sensed during G 1d. Control the replication of DNA

39. Among vertebrates the maximum biodiversity occurs ina. Pisces b. Avesc. Mammals d. Reptiles

40. Which is observed after crossing over between chromosomes having pericentricinversion and normala. Segmental Deletion and Duplication

b. Bridge formationc. Ring formationd. Acentric and dicentric chromosomes

41. If a gene product in Sps A is 90 % similarto gene product in Sps.B. Such genes aretermed asa. Orthologous b. Perilogousc. Paralogous d. Allologous

42. Formation of various species from onecommon ancestor is termed as

a. Adaptive radiation b. Phylogenyc. Cladisitics d. Natural selection

43. If mutation in regulatory gene increases1000 fold efficiency of repressor protein tooperator under such condition, which is trueabout operona. No protein production

b. Basal protein productionc. Normal protein synthesisd. Increased protein synthesis

44. What would be decreases order of viability bacteria if it is stored at(a) 4-9 0C (b) 0 0C (c)-196 0Ca. c b a b. a b cc. b c a d. c a b

45. The type of vegetation in climate havingannual temperature range 5-20 0C and rainfall150-300 mm will bea. Temperate deciduous

b. Temperate evergreenc. Taigad. Grasslands


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46. Heavy metal (Pb) resistance in Thalspiecurulesiensis is due toa. Presence of cation efflux pumps

b. Presence of Na-K pumpsc. Metal adsorbtiond. Metal metabolism

47. Which ion gradient is formed across thethylakoid membrane If a light is incident onisolated thylakoida. H + b. Na +

c. Both Na + and H + d. Cl -

48. In haemoglobin efficiency for oxygenincreases when there isa. Low pO 2 b. High pCO 2c. Low pCO 2 d. High pO 2

49. Molecular phylogenetics is based ona. Neutral evolution b. Natural selectionc. Parallel evolution d. Co evolution

50. Advantage of numerical taxonomy isa. Objective in nature

b. Subjective in naturec. Easily manageabled. Few characters are considered

51. Among the following which is

characteristic feature of Meiosis-Ia. Separation of homologous chromosome

b. Separation of chromatidsc. Doubling of DNA contentd. Movement of chromosome towards poles

52. RNA dependent DNA polymerase is present ina. Human Papiloma Virus b. Hepatitis Bc. Hepatitis C d. Epstein-Barr Virus

53. Aldosterone is involved ina. Electrolyte balance

b. Carbohydrate metabolismc. Fat metabolismd. Growth and Developmemt

54. Insulin resistance females generally have problem in ovulation becausea. The elevated androgens cause an increasein free estrogen which results in a decreasein follicle stimulating hormone (FSH) .

b. The androgens are decreased thus folliclestimulating hormone (FSH) is increased.c. Amount of free estrogen decreasesd. Ovary become non-functional

55. If the organism carrying the gene, the bearer survives to reproduce and also helps the borne who carry many of the same genessurvive to reproduce. This phenomenon istermed asa. Inclusive fitness b. Darwinian fitnessc. Reproductive fitness d. Survival fitness

56. In glycolysis if concentration ofGyceraldehyde-3-P is 2 x10 -6 and of Dihydroxyl acetone Phosphate is 4 x 10 -4 at pH7.2 and G0 value 9.2 K cal/mole. Then thereaction will proceeda. More toward Glyceraldehyde-3-P

b. More toward Dihydroxy Acetone phosphatec. Remain at equilibriumd. Cannot be predicted by given information

57. The penta-cyclic ring common is VitaminA, Vitamin K and Chlorophyll isa. Isoprene b. Phenolc. Pentose d. Aldehyde

58. The repeating structure common inHaemoglobin, Chlorophyll and cytochrome isa. Porphyrin b. Pentosec. Benzene d. Phenol

59. The accumulation of DDT has decreased

the population of Pelican ducks because DDTa. Decreased availability of Ca for egg shellswhich leads into thin shelled fragile eggs

b. Killed all duckenc. Interfered Ca Metabolismd. Stopped synthesis of eggs

60. DNA is destabilized bya. Formamide b. Polyglycinec. Sucrose d. PEG

61. The present concept for origin of life isa. At hydrothermal vents b. In mid oceansc. Pangenesis d. On land

62. Section 1 of Indian wild life act deals witha. Preservation of endangered animals

b. Formation of zoo and botanical gardensc. Banning poaching and huntingd. Allowing limited wildlife sports

63. Hot spots are primarily designated on basisa. endemism b. Species diversity

c. Area covered d. Flowering plantspecies


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64. Phytoplankton spends very little energy ondeveloping protective structures against

predator, this suggest that whya. Assimilation efficiency is high in aquaticecosystem

b. Productivity of aquatic ecosystem is lowc. There is less competitiond. Food chain is small

65. If bacteria genome and plasmid areallowed to replicate in same manner thena. Plasmid genome will replicate fast

b. Bacterial genome will replicate fastc. Both will replicate at same timed. Depends on GC content

66. Interspecific hybrids have proved very

useful fora. Gene mapping b. Genetic manipulationc. Gene structured. Gene function

67. Semi-conservative mode of DNAreplication can be experimentallydemonstrated by usinga. BrU labeling b. S 32

c. In situ hybridisitation d. G-banding

68. Stenohaline organisms cana. tolerate Narrow range of saltconcentration

b. tolerate wide range of saltc. Can excrete extra salt to keep salt amountconstantd. Escapes salty conditions

69. Temporary fluctuation in population size isdue toa. Migration

b. Carrying capacityc. Bottle neckd. Interspecific competition

70. If u remember question please inform us


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