Rajasthan PCS Pre 2010 Examination BOTANY solution

Rajasthan PCS Pre 2010 Exam

BOTANY solution

BOOKLET. A

    

1. 1882, Angelina Fannie and Walther Hesse in Koch's laboratory develop the use of agar as a support medium for solid culture. 2
2. Amantia..... The genus Amanita contains about 600 species of agarics including some of the most toxic known mushrooms found worldwide. 1
3. In geometry, an icosahedron is a regular polyhedron with 20 identical equilateral triangular faces, 30 edges and 12 vertices. 2
4. 3
5. 1
6. ?
7. 1
8. 2
9. 3
10. 1
11. Ceropegia odorata, a threatened endemic species of India with medicinal properties, ..... Occurrence of threatened fragrant Ceropegia in Toranmal forests 2
12. 3
13. 2
14. 28 Jul 2004 ... Genetic diversity refers to any variation in the nucleotides, genes, chromosomes, or whole genomes of organisms -3
15. Monocots evolved from dicots. The simplest difference, and one that seems almost ... Most flowering trees are dicots. In monocot roots, the phloem and xylem ... The veins in monocot leaves are usually parallel, like in a blade of grass. . 2
16. biodiesel ....1
17. fuel wood plant rajasthanThe heating value of Prosopis cineraria wood is reported to be high, making it some of the best firewood. The lopped branches are good as fencing material. 3
18. totipotency...4
19. Pharmacogenomics is the branch of pharmacology which deals with the influence of genetic variation on drug response in patients by correlating gene expression or single-nucleotide polymorphisms with a drug's efficacy or toxicity. By doing so, pharmacogenomics aims to develop rational means to optimise drug therapy, with respect to the patients' genotype, to ensure maximum efficacy with minimal adverse effects. Such approaches promise the advent of "personalized medicine"; in which drugs and drug combinations are optimized for each individual's unique genetic makeup. 1
20. Glyceric acid ...3
21. Zymase is an enzyme complex ("mixture") that catalyzes the fermentation of sugar into ethanol and carbon dioxide. As the conversion takes place, ...
22. The fibre is one of the most valuable parts of the hemp plant. ... The first identified coarse paper, made from hemp, dates to the early .... Hemp had long since fallen out of favour in the sailing industry in preference to Manila hemp. 3
23. The reduction in plant cover that accompanies desertification leads to accelerated soil erosion by wind and water...1
24. Ficus elastica, also called the rubber fig, rubber bush, rubber plant, or Indian rubber ....2
25. Callus...3
26. Mitosis...1
27. Heeng....3
28. Rajasthan central india..The Vindhya range runs across most of central India, extending 1,050 km (652 mi).[12] The average elevation of these hills is 3,000 m (9,843 ft).[12] They are believed to have been formed by the wastes created by the weathering of the ancient Aravali mountains.[15] Geographically, it separates northern India from southern India. The western end of the range lies in eastern Gujarat, near its border with Madhya Pradesh, and runs east and north, almost meeting the Ganges at Mirzapur....3
29. BOD....3
30. plastids...2
31. Generative cell divides into two male gametes 1
32. Auxin...3
33. oxygen....3
34. Transgenic plants possess a gene or genes that have been transferred from a different species such as another plant, or a microorganism, or other source. They are created in nature during horizontal gene transfer They can also be created during plant breeding, and especially in recent years through the use of the plant DNA transformation technique in biotechnology. ..1
35. 4
36. ?
37. Cholesterol is required for the growth of species of the genus Mycoplasma as well as certain other genera of mollicutes. 3
38. 1
39. Witch's broom growths last for many years and can be caused by many different types of organisms, such as fungi, insects, mistletoe, dwarf mistletoes ..2
40. Collenchyma is a living tissue. It gives mechanical strength and elasticity 1
41. jai phal ...3
42. Resveratrol (3,5,4'-trihydroxy-trans-stilbene) is a phytoalexin produced naturally by several plants when under attack by pathogens such as bacteria or fungi.Peanuts are a significant source of resveratrol, a chemical studied for potential anti-aging effects and also associated with reduced cardiovascular disease and reduced cancer risk.....2
43. 3
44. sec lateral meristem..?
45. Tikka ....3
46. Yellow dye....?
47. 1
48. 3
49. Triticale.....4
50. 3
51. 1
52. 2
53. Dichogamy...1
54. Explant...2
55. Essential element....?
56. Blight....4
57. Emasculation...1
58. over wintering rust...?
59. Cryoprotecter....2 poly ethline glycol
60. Plant systemetics....2
61. Innovation helpd plant...?
62. physical address of organism....2
63. Non degradibile pollutent.....3 PVC
64. Double fertilisation...2
65. VEGETATION The vegetation of the area has been classified as "scrub jungle". Plants which can either adapt themselves to high temperatures ...3
66. Red rot....1
67. Photoperiodism term......2
68. Liver worts...3
69. The cotyledon in monocots is represented by a structure called the "scutellum" and is an outgrowth of the embryo. The scutellum is connected to the embryo ...3
70. epiphytotics are closely connected with the weather conditions. Several methods of forecasting late blight have been proposed and tried in different ...4
71. effectiveness taxonomy...3
72. Anogeissus sericea sub sp. nummularia is a rare/endemic forest tree of Rajasthan. It is included in Red Data Book of Indian Plants. Area Under Cultivation ..3
73. .Form taxa....?
74. Protoplast....3
75. DNA finger printing....2. alec jeffreys
76. Virus life cycle...3 ...attachment/penitration/uncoating/replication/relase
77. Social Forestry...4
78. Road side ornamental tree....As well as being superb street trees, jacarandas look stunning on their own as a specimen tree in an open lawn, where their fallen flowers form a colourful ...2
79. Living Fossil gymnosperm....1... formed from part of a flower called an ovary, surrounds the gymnosperm seed. ... This is why cycads are sometimes referred to as "living fossils", ...1
80. Jumping gene....3
81. Endangered medicinal plant..Know all about Guggul herb or Commiphora Mukul- guggul benefits and guggul extract uses for lowering cholesterol, lipid, weight loss, pain relief, ...In the Aravali hills of Rajasthan (northwest India), community-based approaches were followed to conserve Commiphora wightii, an endangered medicinal plant. ...2
82. Seed habit.......2
83. cell theory....1
84. Structure of ecosystem.....2
85. Human eye resolution power....4
86. dry wood....3. Imbibition
87. Tissue term....2
88. Bateson was the first to suggest the word "genetics" (from the Greek gennō, ... "Women in the early history of genetics. William Bateson and the Newnham ...1
89. Chemical evolution...4
90. ICBN...2
91. A total of 20652 rice varieties from the IRRI germplasm bank representing different countries of Asia were analyzed. In addition, isozyme data on 4867 ...1
92. Cryopreservation is a process where cells or whole tissues are preserved by cooling to low sub-zero temperatures, such as (typically) 77 K or −196 °....3
93. Speciation is the evolutionary process by which new biological species arise. The biologist Orator F. Cook seems to have been the first to coin the term ...1
94. pollination scientific basis....?
95. Early blight, caused by Alternaria solani (E. & M.) Jones and Grout, is a very common disease of potato and is found in most potato growing ...2
96. Germ plasmBreeding stocks (elite germ plasm). Breeding stocks are .... and handled by the genetic stock officer in the interest of genetic ...1
97. Vascular plant arose from.....2
98. Evolution of chemical subustance...1
99. Virus sizeMost viruses that have been studied have a diameter between 10 and 300 nanometres ...3
100. Microbe term as microbes or microorganisms, these organisms usually cannot be observed with the naked eye. The term "microbe" was coined by Charles. Sedillot, a French ...2