Sarkari Naukri

यह ब्लॉग खोजें

शुक्रवार, 21 अक्तूबर 2016

Biology GK Question and Answers

Biology GK Question and Answers

1. Trunk of tree increases in grith due to cell division in which tissue? – Meristematic tissue
2. Which tissue in cells have lost the capicity of cell division? – Permanent tissue
3. Which scientist studied about wheat rust problem? – K. C. Mehta
4. Most of the plants obtain nitrogen from the soil in which from? – Nitrates
5. Which fungus is responsible for disease late blight of potato? – Phytophthora infestans
6. Which is responsible for red rot of sugarcane? – Collectorichum falcatum
7. Which stage of development of insect is most harmful for crop? – Caterpillar
8. In India famous Bengal famine accurred in 1942 by which disease? – Leaf spot of rice
9. Which factors are most responsible for disease in plant? – Fungi
10. Which fungus is responsible for the tikka disease of groundnut? – Cercosplora personata
11. Which animals who have constant body temperature? – Homeothermic
12. What is treatment of body defects through massage and exercise? – Physiotherapy
13. What is making interesting discoveries unexpectedly or by accident? – Serendipity
14. What is Study of growth and development of embryo? – Embryology
15. Which branch of biology is concerned with study and function of internal organ of organism? – Physiology
16. Which branch of science deal with the study of causative agent of disease? – Etiology
17. What is the Study of pulse and arterial blood pressure called? – Sphygmology
18. Which branch of biology deals with the study of processing and preservation of food? – Food technology
19. What is the Study of the effects of toxic chemical substance on animal and plant? – Toxicology
20. What is the Branch of science which deals with the study of skin of man? – Dermatology
21. The release of which fish into wells helps in controlling the mosquitoes? – Gambusia fish
22. Which animal lays eggs and does not produce young ones directly? – Echidna
23. How many pair of heart is found in an earthworm? – Four
24. Which substance found in blood which helps in cloting? – Fibrinogen
25. Which worm reach into intestine of human by eating leaf? – Tape worm
26. Which is the phylum that includes exclusively marine animal? – Echinodermata
27. Which organs has its own wave of autonomic excitation? – Heart
28. What is the short upper part of human intestine next to the stomach? – Duodenum
29. A person feel fatigued due to depositon of which acid in their muscles? – Latic Acid
30. In the retina of eye cells what is present for colour differentiation? – Cones
31. Which gland is responsible for the secretion of insulin? – Pancrease
32. What is considered as the easily digestable source of protein? – Soyabean
33. What percentage of water found in blood plasma of human? – 91 to 92%
34. Which blood vessel bringing blood into Bowman’s capsule? – Afferent arteriole
35. Bu which antibodies are produced in the plasma of blood? – Lymphocytes
36. Which enzyme take part in digestion of milk protein? – Rennin
37. Which part of brain is centre of thirst hunger and sleep? – Hypothalmus
38. Blood Coagualtion is prevented by which chemical when it flow through artery and vein? – Heparin
39. Which organelles in the cell, other than nucleus contains DNA? – Mitochondria
40. What is infolding from the inner membrane of mitochondria called? – Cristae
41. In a living cell what is the site of ribosome formation? – Nucleolus
42. What do both respiration and photosynthesis require? – Cytochromes
43. In absence of ribosome in cell which function does not takes place? – Protein synthesis
44. Deficiency of which vitamin, causes xerophthelmia? – Vitamin A
45. Which antimicrobial drug is suitable for treatment of both tuberculosis and leprosy? – Rifampicin
46. Insects that can transmit diseases to human are referred to as which name? – Vectors
47. Pneumoconiosis affects the workers who work mainly in which industry? – Coal mining industry
48. Lathyrism is caused by excessive consumption of which thing? – Khesari Dal
49. Which part of blood carry out the function of body defence? – White blood cell
50. Which disease is caused due to presence of excess arsenic in water? – Skin Cancer
51. What is the transmission of characters from one generation to next? – Heredity
52. Who got noble prize for artificial synthesis of DNA? – Kornberg
53. What is the smallest part of DNA that undergoes recombination? – Recon
54. By whom was Artificial gene synthesis first done in laboratory? – Khurana
55. By whom the concept of survival of the fittest as advanced? – Herbert Spencer
56. From the evolutionary point of view, which is the most primitive animal? – Turtle
57. Which was the Russian scientist who proposed the theory of origin of life? – Oparin
58. Who published the book ‘Origin of species by natural selection in 1859’? – Darwin
59. Which is most primitive ancestor of man ? – Australopithecus
60. Which harmful element tobacoo exists in tobacoo ? – Nicotine
61. What is abiotic component of ecosystem? – Water
62. What is Study of inter relationship between living organism and their environment? – Ecology
63. Epiphytes are plant which depend on other plants for which purpose? – Mechanical support
64. What amount of energy transfered from one trophic level to next? – 10%
65. Plant and animal living in a particular area, what is it called? – Community
66. Reduced leaves and sunken stomata are the main feature of which thing? – Xerophytes
67. What ratio of forest area needed for ecologycal balance in India? – 33.3%
68. Ultimate environmental hazard to mankind, why? – Due to Nuclear pollution
69. Sound become hazardous noise pollution at which level? – Above 80 dB
70. Which energy do not have the problem of pollution? – Sun
71. Which air pollutant affect the nervous system of man? – Lead
72. By which is the Atmosphere of big metropolition cities is polluted most? – Automobile exhausts
73. National Environmental Engineering research institute is situated in which city? – Nagpur
74. Edward Jenner is related with which disease? – Small pox
75. Which Scientist first explained about circulatory system? – William Harvey
76. Who discovered Anopheles mosquito transmit malaria? – Ronal ross
77. Who discovered the causal organism of the disease Anthrax? – Robert Koch
78. Which Scientists has established the ‘Phylum Annelida’? – Lamark
79. Which Biologist proposed the theory of Germ plasm? – Weisman
80. For which is the southern blot technique used for the detection? – DNA
81. For which is the northern blot technique used for the detection? – RNA
82. What is the introduction of foreign genes for improving genotype? – Immunisation
83. Which vitamin is transformed in golden rice ? – Vitamin A
84. Human protein x –1 – antitrysin is used for which disease? – Emphysama
85. Which type of cell has the ability to develop into any type of all ? – Stem cell
86. What is the percentage of land area covered under forest according to Indian Forest policy? – 33%
87. Which organisation is responsible for maintaing Red data book? – IUGN
88. What is the main cause of extinction of species from tropics? – Deforestation
89. What is the number of plant species estimated to be present in India? – 40,000
90. Which group has the highest number of endangered species ? – Reptiles
91. Silent valley having rare plant and animal is located in which state? – Kerala
92. Which is the first national park established in India? – Corbet 93. Insectivorous plant generally grow in soil which is deficient in which gas? – Nitrogen
94. What is one-way relationship where one species benefits at the expense of another is called? – Parasitism
95. What is symbiotic relationship in which both species benefit’ is best described? – Mutualism
96. Which of a species describes the tropic function it fills in its environment? – Niche
97. What is the least influential in determining the distribution of terrestrial biomes? – Salinity
98. What is the term for the maximum number of individuals that an area can support indefinitely? – Carrying capacity
99. The massive hole in the ozone layer over the Antarctica was first discovered in which year? – 1985
100. Which animals have a diet mainly consisting of bamboo? – Red pandas






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