Download BOTANY TEST

APPLICATION BIOLOGY
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The pesticide most toxic to vertebrates is
a. carbamates b. organophosphates
c. organochlorides
d. nicotine
e. none of these
Loss of agricultural productivity due to pest and disease is
a. 5%
b. 10%
c. 15%
d. 30% e. 50%
Transgenic crop developed to tolerate herbicide is
a. tomato
b. tobacco
c. both a and b d. sunflower
e. none
Natural insecticide azadiractin is obtained from
a. fungus
b. algae
c. neem
d. tobacco
e. none
VAM is
a. endomycorrhiza
b. ectomycorrhiza
c. bioinsecticide d. bioherbicide
e. none
The nitrogen fixing symbiotic organism present in the leaves of Azolla is
a. anabaena
b. azospirillum d. aulosira
d. nostoc
e. none
The best biofertilizer for rice is
a. rhizobium
b. bacillus
c. azospirillum d. bradyrhizobium
e. none
Fertilizers applied to crop plants , pollute
a. water resources
b. soil resources c. both water and soil resources e. none
A manure supplied to the plant
a. nitrogen
b. phoaphorous c. potassium
d. all nutrients e. none
Germ plasm contains
a. reproductive cells
b. somatic cells c. both a and b d. leaf e. none
The native place of Hevea rubber is
a. India
b. malasia
c. mexico
d. asia minor e. brazil
Which of these is solar energy converter
a. chlorella
b. mucor
c. agaricus
d. rhizobium d. none
Restriction endo nuclease
a. specific for each gene b. common to all genes c. common to all RNAs
d. common to all organisms
d. none
Reproducing new plants by cells instead of seeds is known as
a. bio fertilizer b. mutation
c. tissue culture d. antibodies
e. none
One of the plants introduced from old world to new world is
a. potato
b. rice c. sweet potato d. maize
e. none
The main source of bio fertilizers are
a. cyanobacteria
b. fungi c. bacteria
d. all these
e. none
Which of the following is a green manure
a. sebania
b. maize
c. rice d. sorghum
e. none
Which of the following is an aneuploid
a. diploid
b. triploid c. trisomic
d. tetraploid
e. autotetraploid
Which of the following is a fungicide
a. 2,4-D
b. DDT
c. BHC
d. Bordeaux mixture
e. none
Which of the following most commonly used for green manuaring in India
a. Sun hem
b. Lentil
c. Cowpea
d. all these
e. none
Biopiracy is related to which of the following
a. traditional knowledge
b. bio molecules and bio resources
c. genes isolated from bio resources
d. bio resources
e. all these
Which of the following is used in bio war
a. pathogen
b. toxin from pathogen c. a delivery system from the bio weapon agent d. all these
e. none of these
23. Yoghurt is prepared from milk by fermentation using
a. rhizopus
b. lactobacillus bulgaricus c. actinomucor d. aspergillus e. none
24. The ferments food Tempeh is a fermented food used in Japan. It is prepared using rhizopus in the substrate
a. rice b. soyabean
c. barley
d. milk
e. tofu
25. Cheese is prepared from milk by the fermentation process using
a. pencillium roqueforti b. aspergillus c. rhizopus
d. streptococcus e. none
25. Single cell protein – SCP – technology is developed to meet the requirements like
a. human protein suppliment b. animal and poultry food
c. both a and b
d. bio fertilizer e. manure
26. In SCP production microorganisms are cultured in large bioreacters to form large mass of
cells. Which of the following microorganism is generally used
a. algae
b. yeast
c. bacteria
d. all these
e. none
27. Algal SCP contains about 60% protein. It is cultured using the substrate
a. CO2
b. Sugar c. CO2 and sunlight d. CO2 and water
e. none
28. Which one of the algae is used as a source of SCP
a. chlorella
b. scenedesmus
c. spirulina
d. all these e. none
29. Filamentous fungi like fusarium graminearum , paecilomyces varioti etc are used to produce SCP. They produce
55-60 % crude protein using
a. Starch
b. sucrose
c. starch hydrolysates d. starch paste e. none
30. The most important source of bacterial SCP is methylophilus methlotrophus species. It can produce about 80%
crude protein using
a. ethanol b. methanol d.CO2 and sunlight
d. water and sugar
e. agar
31. Filamentous fungi like Paecilomyces varioti produces SCP using
a. starch
b. sulphite liquor
c. CO2
d. methanol
e. sugar
32. Yeasts like Saccharomyces uses molasses as the substrate to produce SCP while Candida utilis uses
a. ethanol
b. methanol
c. starch
d. molasses
e. none
33. Of the 4000 species of mushrooms , the edible varieties include
a. 1000
b. 2000
c. 450
d. 120
e. 800
34. The most common edible mushrooms are
a. Agaricus compestris b. A. arvensis c. Morechella esculanta d. all these
e. none
35. The common poisonous mushroom is
a. Amanita phalloises b. a. voiraosa c. Lepiota morgani
d. all these
e. none
36. The poisonous mushrooma differs from edible ones in
a. colour of the body
b. unpleasant taste or smell
c. grows in woods
d. produce pink coloured spores
e. all these
37. Which of the following is used for mushroom culture
a. straw
b. salt solution c. sugar solution d. starch with salt
e. none
38. The recommended dose of the preservative potassium meta bisulphite in foods is
a. 1% b. 0.1%
c. 0.05%
d. 0.005%
e. 2%
39. The common vinegar used as preservative in foods is
a. ethanol
b. sodium meta bisulphite c. china salt d. acetic acid
e. none
40. Collection of best plants from mixed population of crops is called
a. pure line selection
b. mass selection c. clonal selection
d. breed selection
e. none
41. Clonal selection method is usually done in
a. rice b. potato
c. sweet potato d. sugar cane e. both c and d
42. Colchicine , the mitotic poison used to induce polyploidy in plants is obtained from the
plant Colchicum autumnale. It is extracted from
a. leaves
b. roots
c. seeds and bulbs
d. stem
e. flower
43. Which one is an autopolyploid
a. potato
b. coffee
c. ground nut d. banana
e. all these
44. Which of the plant is used for mutation studies
a. triploid
b. diploid
c. monoploid d. trisomic
e. tetrasomic
45. Triticale is a man made allo polyploid. Which one is another allopolyploid
a. sweet potato b. Rhaphano brassica c. sugar cane
d. potato e. none
46. The azolla – Anabaena symbiotic relation is utilized to increse the fertility of rice field.
It increases ------ in the soil
a. K
b. P
c. N2 d. C
e. Sulphur
47. Bacillus polymyxa is a
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a. cyanobacteria b. symbiotic nitrogen fixing bacteria
c. free living nitrogen
fixing bacteria d. fungus
d. antibiotics producing bacteria
The loose association between a nitrogen fixer bacteria Azospirullum and Brazilian grass was found out by
a. Swaminathan
d. Guha and Maheswari
d. Johannah Dobreine
d. Khorana
e. none
Combination of photosynthesis and nitrogen fixation occurs in cyano bacteria like
a. Anabaena
b. Nostoc
c. Aulosira
d. all these
e. none
Ectomycorrhiza forms a mantle on the outside of the roots of plants. This increases
a. fertility
b. support
c. water and nutrient absorption
d. all these
e. none
Endomycorrhiza like Vesicular Arbuscular Mycorrhiza lives in
a. in the xylem b. in the phloem
c. in the cortex cells
d. in the stem
e. in the growing bud
In plant tissue culture one of the following is used as growth factor
a. GA3
b. Zeatin
c. ABA
d. urea
e. all these
The laminar air flow apparatus is used in
a. silk reeling b. honey extraction
c. plant tissue culture d. genetic engineering e. plant
breeding
Which one is used to sterilize the plant material before culturing
a. ethanol
b.methnol
c. sodium hypochlorate d. calcium hypochlorate
e. either c or d
The White’s medium was once used to culture
a. SP algae
b. bacteria
c. fungi
d. plant tissues e. none
One of the best combination of growth regulators in tissue culture
a. salt and sucrose
b. glucose and sucrose c. glucose and salt
d. sucrose and gelatin e. sucrose and minerals
The advantage of somatic embryoculture is that a complete plant with tap root system can be produced. Which of
the plant was produced through this method
a. carrot
b. celery
c. alfalfa
d. all these
e. none
The first anther culture in Datura was carried out by
a. Beadle and Tatum
b. Swaminathan
c. Guha and Maheswari
d. Linsmaier and Skoog e. none
Kolerago is
a. disease of potato
b. disease of aracanut c. culture medium
d. nutrient in tissue culture
e. disease of beetel
Which one is a natural insectcide
a. nicotine
b. pyrethrum c. cinerin
d. all these
e. none
Answer key
1.b
2.d
3.c
4.c
5.a
6.a
7.c
8.c
9.d
10.a
11.2
12.a
13.a
14.c
15.b
16.d
17.a
18.c
19.d
20.d
21.e
22.d
23.b
24.b
25.a
25.c
26.d
27.c
28.d
29.c
30.b
31.b
32.a
33.b
34.d
35.d
36.e
37.a
38.c
39.d
40.b
41.e
42.c
43.e
44.c
45.b
46.c
47.c
48.d
49.d
50.c
51.c
52.e
53.c
54.e
55.d
56.a
57.d
58.c
59.b
60.d