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Quiz 6
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Q.1
Emasculation of flower is carried out through removal of ... [ BHU 2002]
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a) Entire organism
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b) Anthers
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c) Sepals and petals
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d) Stigma
Explanation
Answer : (b)
Q.2
Which one is not a marine fish? ..[ MHTCET 2008]
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a) Pomfret
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b) Mackerel
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c) Catla
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d) Sardine
Explanation
Answer : (c)
Q.3
Super-ovulation and embryo transplantation are meant for improving ... [ JKMCEE 1994]
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a) Human race
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b) Livestock
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c) Plants
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d) Poultry
Explanation
Answer : (b)
Q.4
Read statements (a-d). How many of them are wrong ... [ CBSE 2012] a) Colostrum is recommended for new born as it is rich in antigens b) Chikungunya is caused by Gram (-) bacterium c) Tissue culture is useful in obtaining virus free plants d) Beer is obtained by distillation of fermented grape juice
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a) Four
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b) Three
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c) Two
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d) One
Explanation
Answer : (b)
Q.5
Hybrid of Potato and Tomato is ... [ DPMT 1996]
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a) Pomato
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b) Tomapo
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c) Potamato
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d) None of the above
Explanation
Answer : (a)
Q.6
Which is not necessary for obtaining protoplasts for somatic hybridization ....
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a) Primase
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b) Cellulase
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c) Pectinase
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d) Both a and c
Explanation
Answer : (a)
Q.7
Jatropha is a ... [ Wardha 2011]
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a) Biodiesel crop
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b) Biopetrol crop
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c) Fibre crop
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d) Food crop
Explanation
Answer : (a)
Q.8
Anther culture/androgenesis is used to produce ... [ MHTCET 2011]
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a) Male plants
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b) Sterile plants
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c) Haploids
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d) All the above
Explanation
Answer : (c)
Q.9
Which is incorrectly matched .... ] kerala 2007]
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a) Explant → Excised plant part used for callus formation
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b) Cytokinins → Root initiation in callus
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c) Somatic embryo → Embryo produced from a vegetative cell
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d) Anther culture - Haploid plants
Explanation
Answer : (b)
Q.10
Petro-crops are plants ... [ Pb. PMT 1998]
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a) Used in refining crude oil
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b) Whose fossil remains formed crud oil
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c) Grown near oil fields
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d) From which petrol-like fuels can derived
Explanation
Answer : (d)
Q.11
Haploid from anther were first obtained from ... [ CPMT 2005]
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a) Gossypium
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b) Datura
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c) Brassica
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d) Nicotiana
Explanation
Answer : (b)
Q.12
Callus is not produced in ... [ MHTCET 2010]
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a) Sexual reproduction
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b) Suspension culture
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c) Wound
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d) Tissue culture
Explanation
Answer : (a)
Q.13
ia's wheat yield revolution of 1960s was possible primarily due to ... [ CBSE 2004]
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a) Hybrid seeds
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b) Mutations resulting in plant height reduction
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c) Increased chlorophyll content
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d) Quantitative trait mutation
Explanation
Answer : (b)
Q.14
Which statement about breeding is wrong ... ..[ Kerala 2012]
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a) A single outcross often helps to overcome inbreeding depression
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b) By inbreeding pure lines cannot be involved
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c) Cross breeding allows desirable qualities of two different breeds to be combined
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d) Continued inbreeding reduces fertility and productivity
Explanation
Answer : (b)
Q.15
Biogas contains ... [ MHTCET 2002]
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a) CH4 + CO + CO2
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b) CH4 + CO2 + H2
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c) CO + CO2 + H2
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d) CO + CO2 + NO2
Explanation
Answer : (b)
Q.16
Which is the best breeding method for animals that are below average in productivity in milk production? [ HPPMT 2010]
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a) Interspecific hybridization
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b) Cross breeding
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c) Out breeding
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d) Out crossing
Explanation
Answer : (b)
Q.17
Inland fisheries are ... [ MPPMT 1997]
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a) Oil extraction from fish
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b) Capturing fishes from sea coast
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c) Deep fishing
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d) Rising and capturing fishes in fresh water
Explanation
Answer : (d)
Q.18
Select the correct statements out of (a-d) ... [ CBSE 2012] a) Single celled Spirulina can produce large quantities of food rich in protein, minerals and vitamins b) Body weight-wise the microorganism Methylophilus methylotrophus produces several times more protein than a cow per day c) Button Mushroom is a rich source of vitamin C d) A rice variety has been developed which is every rich in calcium
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a) c and d
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b) a, c and d
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c) b, c and d
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d) a and b
Explanation
Answer : (d)
Q.19
Which one is a step in processing Kipps and buffs
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a) Deliming
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b) Casting
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c) Digesting
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d) Reeling
Explanation
Answer : (a)
Q.20
Development of shoot and root in tissue culture is determined by ... ...[ AIIMS 1997]
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a) Cytokinin and auxin ration
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b) Plant nutrients
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c) Enzyme
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d) Temperature
Explanation
Answer : (a)
Q.21
Differentiation of shoot in tissue culture is controlled by ..... [ CBSE 2003]
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a) High auxin : cytokinin ratio
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b) High cytokinin : auxin ratio
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c) High gibberellin : auxin ratio
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d) High gibberellin : cytokinin ratio
Explanation
Answer : (b)
Q.22
Krishna/Ratna and 'Jaya' are varieties of ,,, [ CBSE 2011]
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a) Maize
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b) Rice
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c) Wheat
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d) Barley
Explanation
Answer : (b)
Q.23
Who showed that certain plants can function as a source of hydrocarbons ... [ MHTCET 2003]
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a) Melvin Calvin
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b) Hans Krebs
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c) Robert Brown
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d) John Priestley
Explanation
Answer : (a)
Q.24
A semi-dwarf variety of Wheat is ... [ H.P.PMT 2012]
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a) Sonalika
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b) IR-8
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c) Triticum
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d) Saccharum
Explanation
Answer : (a)
Q.25
Assertion: Fish meal is a rich source of protein for cattle and poultry Reason: Fish meal is produced from non edible parts of fish like fins and tails
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a) Both are true with reason being is not correct explanation
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b) Both are true but reason is not correct explanation
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c) Assertion is true but reason is wrong
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d) Both are wrong
Explanation
Answer : (c)
Q.26
Callus is ... [ Wardha 2005]
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a) Plant hormone
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b) Root formation in culture media
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c) Plant byproduct
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d) Undifferentiated mass of tissue
Explanation
Answer : (d)
Q.27
Methanogens growing anaerobically on cellulosic material produce I. methane II. oxygen III. carbon dioxide IV. hydrogen ...[AMU 2009]
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a) I, IV
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b) I, II, IV
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c) I, III, IV
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d) I
Explanation
Microorganisms that produce methane as a byproduct of its metabolic activities is known as methanogens. These are anaerobic organisms which when grown on cellulosic material produce methane, carbon-dioxide and hydrogen. One such common bacterium is Methanobacterium. Explanation provided by Sakshi Answer : (c)
Q.28
'Himgiri' a variety of Wheat is resistant to .... [ HPPMT 2011]
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a) Bacterial blight
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b) White rust
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c) Mosaic rust
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d) Leaf and stripe rust
Explanation
Answer : (d)
Q.29
Majority of improved India Rice varieties have arisen from a cross between ... [ Bih PMT 1989]
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a) Oryza sativa indica × Oryza nivara
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b) Oryza sativa indica × O. sativa japonica
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c) O. sativa japonica × O. nivara
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d) O.rufipogon × O.nivara
Explanation
Answer : (b)
Q.30
Heterosis is ... [ DPMT 2002]
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a) Hybrid inviability
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b) Hybrid sterility
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c) Hybrid incompatibility
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d) Hybrid vigour
Explanation
Answer : (d)
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