biology exam preparation for railway group d <a>Biology Papers</a>

1. 5. Which fungusisresponsible fordisease "late blight"of potato?
Ans:–Phytophthorainfestans
6. Which isresponsiblefor"redrot"of sugarcane?
Ans:–Collectorichumfalcatum
8. In IndiafamousBengal famine accurredin1942 by whichdisease
Ans:-Leaf spotof rice
10. Whichfungusisresponsibleforthe tikkadisease of groundnut?
Ans:–Cercosplorapersonata
22. Whichanimal layseggsand doesnotproduce youngonesdirectly? –Echidna
26. Whichis the phylumthatincludesexclusivelymarineanimal?–Echinodermata
28. What isthe shortupperpart of humanintestinenexttothe stomach? – Duodenum
35. Bu whichantibodiesare producedinthe plasmaof blood? –Lymphocytes
36. Whichenzyme take partin digestionof milkprotein? –Rennin
37. Whichpart of brainis centre of thirsthungerand sleep? –Hypothalmus
38. BloodCoagualtionispreventedbywhichchemical whenitflow througharteryandvein? –Heparin
40. What isinfoldingfromthe innermembrane of mitochondriacalled? –Cristae
41. In a livingcell whatisthe site of ribosome formation? –Nucleolus
42. What do bothrespirationandphotosynthesisrequire? –Cytochromes
43. In absence of ribosome incell whichfunctiondoesnottakesplace? –Proteinsynthesis
44. Deficiency of whichvitamin,causesxerophthelmia? –VitaminA
45. Whichantimicrobial drugissuitable fortreatmentof bothtuberculosisandleprosy? –Rifampicin
46. Insectsthatcan transmitdiseasestohumanare referredtoaswhichname? – Vectors
47. Pneumoconiosisaffectsthe workerswhoworkmainlyinwhichindustry? –Coal miningindustry

2. 48. Lathyrismiscausedby excessive consumptionof whichthing? –Khesari Dal
49. Whichpart of bloodcarry out the functionof bodydefence? –White bloodcell
51. What isthe transmissionof charactersfromone generationtonext? –Heredity
52. Who got noble prize forartificial synthesisof DNA? –Kornberg
53. What isthe smallestpartof DNA that undergoesrecombination? –Recon
54. By whomwasArtificial gene synthesisfirstdone inlaboratory? –Khurana
55. By whomthe conceptof survival of the fittestasadvanced? –HerbertSpencer
56. From the evolutionarypointof view,whichisthe mostprimitive animal? –Turtle
59. Whichis mostprimitive ancestorof man?– Australopithecus
63. Epiphytesare plantwhichdependonotherplantsforwhichpurpose? –Mechanical support
66. Reducedleavesandsunkenstomataare the mainfeature of whichthing? –Xerophytes
67. What ratioof forestareaneededfor ecologycal balance inIndia? –33.3%
73. National Environmental Engineeringresearchinstitute issituatedinwhichcity? –Nagpur
74. EdwardJennerisrelatedwithwhichdisease? –Small pox
75. WhichScientistfirstexplainedaboutcirculatorysystem?–WilliamHarvey
76. Who discoveredAnophelesmosquitotransmitmalaria? –Ronal ross77. Who discoveredthe causal
organismof the disease Anthrax? –RobertKoch
78. WhichScientistshasestablishedthe ‘PhylumAnnelida’? –Lamark
79. WhichBiologistproposedthe theoryof Germplasm? –Weisman
82. What isthe introductionof foreigngenesforimprovinggenotype? –Immunisation
84. Human proteinx –1 – antitrysinisusedforwhichdisease? –Emphysama
85. Whichtype of cell hasthe abilitytodevelopintoanytype of all ? – Stemcell
86. What isthe percentage of landareacoveredunderforestaccordingtoIndianForestpolicy? –33%
87. WhichorganisationisresponsibleformaintaingReddatabook? – IUGN
91. Silentvalleyhavingrare plantandanimal islocatedinwhichstate? – Kerala

3. 92. Whichis the firstnational parkestablishedinIndia? –Corbet
93. Insectivorousplantgenerallygrowinsoil whichisdeficientinwhichgas? – Nitrogen
94. What isone-wayrelationshipwhere one speciesbenefitsatthe expense of anotheriscalled? –
Parasitism
95. What issymbioticrelationshipinwhichbothspeciesbenefit’isbestdescribed? –Mutualism
96. Whichof a speciesdescribesthe tropicfunctionitfillsinitsenvironment? –Niche
97. What isthe leastinfluential indeterminingthe distributionof terrestrial biomes? –Salinity
98. What isthe termfor the maximumnumberof individualsthatanarea can supportindefinitely? –
Carryingcapacity
1. From whichcountryis Jerseybull usedforcrossbreedinganexoticvariety? –England
2. Which hormonesstimulatethe plantcellstogrow ina mannersuch that the plantappearsto be bent
towardslight?– Auxin
3. Of whose chromosome isthe sex of a newbornbabydetermined? –The father
4. From whichpart of turmeric,isthe turmericpowderobtained? –Driedrhizome
5. What is the ordinaryand maximumtolerance limitof soundbyhuman? – 60db to 80 db (decibel)
6. Which hormone isusedasan oral contraceptive? –Progesterone
7. Which disease hasbeeneradicatedfromthe world? –Small pox
8. Through whichprocessisexcessof lightenergydissipatedinphotosynthesis? –Quenching
9. Of whichintestineisSigmoidColonpart? – Large Intestine
10. Whichis a molecule inplantscomparableto haemoglobininanimals? –Cytochrome
11. From where TeethandBonesacquire strengthandrigidity? –Calcium
12. What isthe smallestunitof classification? –Species
13. Whichstructure of a plantis responsible fortranspiration? –Stomata
14. By whomwasfive Kingdomclassificationgiven? –Whittaker
15. What are the animalswithchitinousexoskeleton? –Insects
16. The enzymeswhichtake partinglycolysisduringrespiration,Whare are theyfound? – Cytoplasm

4. 17. Whenisbone ossificationtestconductedtoascertainhuman? –Tentative age
18. Whichfungusiscommonlyknownas'bread mould’? – Rhizopus
19. Whichfree livingbacteriuminthe soil increasesthe yieldof rice? –Azotobacter
20. Whichinvertebrate isnotahermaphrodite? –Cockroach
21. What isthe entryof pollentube throughmicropyle? –Porogamy
22. What do the animal possesshavingopencirculatorysystem? –Haemocoel
23. Why dothe flowersemitfragrance? –To attract insects
24. What isthe locomotionof insectstothe source of light called?–Phototactic
25. Whichelementispresentingreenpigmentof leaf? –Magnesium
26. Plantscapable of performingphotosynthesisbelongtowhichof organisms? –Autotrophs
27. How isPhotosynthesisusingthe invisible partof the sunlightdone? –bysome Bacteria
28. Whichorganelle inthe cell,otherthannucleus,containsDNA? –Mitochondria
29. What isthe level of the fastingbloodglucose inadultsinmg/100ml? – 100
30. What isthe eachbodysegmentof Earthworm? – Metamere