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BIOLOGY M.C.Q (0.5 Marks)

Strategies for Enhancement in Food Production · Rajasthan Board (RBSE) STD 12 Science (Rajasthan - English Medium). 37 questions.

Questions

M.C.Q (0.5 Marks)

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37 questions · auto-graded multiple-choice test.

MCQ 11 Mark
What do you mean by "Blue Revolution"
  • A
    Construction of dams for water conservation
  • ✓
    Fish cultivation on large scale
  • C
    Sewage treatment
  • D
    Control of algal bloom
Answer
Correct option: B.
Fish cultivation on large scale
B
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MCQ 21 Mark
Micropropagation is done by following :
  • A
    Self-pollination
  • B
    Asexual reproduction
  • ✓
    Tissue culture
  • D
    Vegetative propagation
Answer
Correct option: C.
Tissue culture
C
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MCQ 31 Mark
Capacity to generate a whole plant from a plant cell is called as :
  • A
    Tissue culture
  • B
    Pluripotency
  • ✓
    Totipotency
  • D
    Micropropagation
Answer
Correct option: C.
Totipotency
C
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MCQ 41 Mark
Which of the following techniques was used to get yellow mosaic virus resistant mung lentil?
  • ✓
    Mutation breeding
  • B
    Introduction
  • C
    Hybridisation
  • D
    Tissue culture
Answer
Correct option: A.
Mutation breeding
A
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MCQ 61 Mark
Triticum aestivum which is a hexaploid wheat possesses :
  • A
    7 chromosomes
  • ✓
    14 chromosomes
  • C
    30 chromosomes
  • D
    42 chromosomes
Answer
Correct option: B.
14 chromosomes
B
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MCQ 71 Mark
Production of plant without fertilization is done by?
  • A
    Grafting
  • ✓
    Transplantation
  • C
    Vegetative propagation
  • D
    Both (a) and (b)
Answer
Correct option: B.
Transplantation
B
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MCQ 91 Mark
Shakti, Rattan and Protina are lysine rich varieties of :
  • A
    Rice
  • ✓
    Maize
  • C
    Wheat
  • D
    Cotton
Answer
Correct option: B.
Maize
B
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MCQ 101 Mark
Which type of protein is found in silk thread?
  • ✓
    Fibroin
  • B
    Albumin
  • C
    Keratin
  • D
    Fibrinogen
Answer
Correct option: A.
Fibroin
A
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MCQ 111 Mark
Which of the following is not included in animal husbandry?
  • A
    Bee-keeping
  • B
    Poultry farming
  • C
    Fish farming
  • ✓
    Organic farming
Answer
Correct option: D.
Organic farming
D
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MCQ 121 Mark
Which of the following factors is important in the formation of new species?
  • A
    Competition
  • B
    Mutation
  • ✓
    Isolation
  • D
    Continuous variation
Answer
Correct option: C.
Isolation
C
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MCQ 131 Mark
Which one of the following is possible in micropropagation?
  • A
    Asexual reproduction
  • B
    Sexual reproduction
  • ✓
    Both (a) and (b)
  • D
    None of these
Answer
Correct option: C.
Both (a) and (b)
C
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MCQ 141 Mark
'Flavr-Savr' gS ('Flavr - Savr' is) :
  • A
    Pesticide
  • B
    Chicken breed
  • ✓
    Transgenic tomato
  • D
    Insecticidal protein
Answer
Correct option: C.
Transgenic tomato
C
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MCQ 161 Mark
Artificial seed is formed with the help of :
  • A
    Somatic embryo
  • B
    Polyembryo
  • ✓
    Both (a) and (b)
  • D
    None of these
Answer
Correct option: C.
Both (a) and (b)
C
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MCQ 171 Mark
Which of the following are single cell protein?
  • ✓
    Spirulina
  • B
    Chlorella
  • C
    Scenadesmus
  • D
    All of these
Answer
Correct option: A.
Spirulina
A
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MCQ 191 Mark
Honey is made by?
  • A
    Male honeybee
  • B
    Queen honeybee
  • ✓
    Worker honeybee
  • D
    Both (a) and (b)
Answer
Correct option: C.
Worker honeybee
C
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MCQ 201 Mark
Fusogen of protoplast culture is?
  • A
    Liquid nitrogen
  • ✓
    PEG
  • C
    Lactic acid
  • D
    all of these
Answer
Correct option: B.
PEG
B
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MCQ 211 Mark
The technique of obtaining large number of plantlets by tissue culture method is called:
  • A
    Organ culture
  • B
    Micro-propagation
  • C
    Macro-propagation
  • ✓
    Plantlet culture
Answer
Correct option: D.
Plantlet culture
D
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MCQ 221 Mark
Choose the cat fish from the following :
  • A
    Katla katla
  • B
    Wallage attu
  • ✓
    Labeo rohita
  • D
    Cirrhinus mrigala
Answer
Correct option: C.
Labeo rohita
C
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MCQ 231 Mark
One of the following is a disease of poultry?
  • A
    Anthrax
  • B
    Perbrine disease
  • ✓
    Ranikhet disease
  • D
    Foot and mouth disease
Answer
Correct option: C.
Ranikhet disease
C
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MCQ 241 Mark
The world's highly prized wool yielding 'Pashmina' breed is :
  • A
    Sheep
  • ✓
    Goat
  • C
    Goat - sheep cross
  • D
    Kashmir sheep - Afghan sheep cross
Answer
Correct option: B.
Goat
B
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MCQ 251 Mark
The best milk breed in the world is :
  • A
    Chittgong
  • B
    Deoni
  • ✓
    Holstein - Friesian
  • D
    Sindhi
Answer
Correct option: C.
Holstein - Friesian
C
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MCQ 261 Mark
Norman Borlaug known as "Father of Green Revolution" has developed new cultivating variety of
  • A
    Paddy
  • B
    Rice
  • ✓
    Wheat
  • D
    Sugarcane
Answer
Correct option: C.
Wheat
C
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MCQ 271 Mark
Triticale, first man-made cereal crop, has been obtained by crossing wheat with?
  • ✓
    Rye
  • B
    Pearl millet
  • C
    Sugarcane
  • D
    Barley
Answer
Correct option: A.
Rye
A
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MCQ 291 Mark
Which of the following products of apiculture used in cosmetics and polishes?
  • A
    Honey
  • B
    Oil
  • ✓
    Wax
  • D
    Royal jelly
Answer
Correct option: C.
Wax
C
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MCQ 301 Mark
To isolate protoplast, one needs :
  • ✓
    Pactinose
  • B
    Cellulose
  • C
    Both pactionose and cellulose
  • D
    Chitinase
Answer
Correct option: A.
Pactinose
A
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MCQ 311 Mark
Most cultivated plants are :
  • A
    Autopolyploid
  • ✓
    Allopolyploid
  • C
    Aneuploids
  • D
    Haploids
Answer
Correct option: B.
Allopolyploid
B
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MCQ 321 Mark
Protoplast is :
  • A
    Another name of protoplasm
  • B
    A animal cell
  • ✓
    A plant cell without a cell wall
  • D
    A plant cell
Answer
Correct option: C.
A plant cell without a cell wall
C
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MCQ 331 Mark
Hybrid vigour is induced by
  • A
    Clonal selection
  • B
    Crossing of plant
  • ✓
    Crossing of two plants
  • D
    Species differentiation
Answer
Correct option: C.
Crossing of two plants
C
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MCQ 341 Mark
Micropropagation is :
  • A
    Propagation of microbes in vitro
  • ✓
    Propagation of plants in vitro
  • C
    Progagation of cells in vitro
  • D
    Growing plants on smaller scale
Answer
Correct option: B.
Propagation of plants in vitro
B
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MCQ 351 Mark
The scientific process by which crop plants are enriched with certain desirable nutrients is called :
  • A
    Crop protection
  • B
    Breeding
  • ✓
    Bio-fortification
  • D
    Bio-remediation
Answer
Correct option: C.
Bio-fortification
C
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MCQ 361 Mark
Which one of the following is not a fungal disease?
  • A
    Rust of Wheat
  • ✓
    Smut of Bajra
  • C
    Black rot of Crucifers
  • D
    Red rot of Sugarcane
Answer
Correct option: B.
Smut of Bajra
B
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MCQ 371 Mark
At what pH insecticidal protein synthesized by Bacillus thuringiensis becomes active?
  • A
    Acidic PH
  • ✓
    Alkaline pH
  • C
    Neutral pH
  • D
    First acidic then alkaline pH
Answer
Correct option: B.
Alkaline pH
B
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