CBSE Questions for Class 12 Medical Biology Strategies For Enhancement In Food Production Quiz 5 - MCQExams.com

Cows are classified in _____ categories.
  • Drought breeds.
  • Dairy breeds.
  • Dual purpose breeds.
  • All of the above.
Cattle requires ___________.
  • Brushing to remove dirt
  • Removal of loose hair
  • Roofed shed
  • All of the above
A plant cell has potential to develop into a full plant. This is called as 
  • Totipotency
  • Gene cloning
  • Tissue culture
  • Regeneration
Lesions on leaves, stems and fruits with raised, brown, water soaked margins seen in
  • Smut
  • Rust
  • Canker
  • None of these
The major component of honey is 
  • Glucose
  • Sucrose
  • Maltose
  • Fructose
Plants show orange patch on infected plant parts
  • Rust of wheat
  • Smut
  • Red rot
  • All of the above
Obtaining fish by fish farming is called as
  • Capture fishing 
  • Culture fishery
  • Aquaculture
  • None of the above
The practice of _____ keeping is called apiculture
  • Worm
  • Insects
  • Bee
  • None of these
The .......... bees have high honey collection capacity.
  • Russian
  • Italian
  • Indian
  • African
The local varieties of bees used for commercial honey production are 
  • Apis cerana indica
  • Apis cerana indicain
  • Apis cerana indicial
  • Apis cerana indicais
The level of .......... is kept high in the poultry feeds.
  • Vitamins A and K
  • Vitamin B and C
  • Vitamin D and K
  • Vitamin C and A
During ___ period, chickens require sufficient space to avoid overcrowding enabling proper growth.
  • Growing
  • Egglaying
  • Hatching
  • Sexually active
Broiler are quick growing table birds which are raised for about ____ to attain proper weight
  • 6 - 7 weeeks
  • 7 - 8 weeks
  • 8 - 9 weeks
  • All of the above
Indias marine fishery resources include ______ km of coastline and the deep seas beyond it
  • 7500
  • 700
  • 70
  • 7000
Improved poultry breeds are developed and farmed to produce _____
  • Layers for eggs and broilers for meat
  • Broiler for meat
  • Layers of eggs
  • None of these
Hybridisation between two varieties of the same species is known as
  • Interspecific hybridisation
  • Intraspecific hybridisation
  • Interfamilial hybridisation
  • None of the above
During the extraction of honey
  • Comb sheets are taken out
  • Kept in honey extractor
  • Both A and B
  • None of the above
In plant tissue culture, undifferentiated tissue is referred to as
  • Callus
  • Bark
  • Xylem
  • None of the above
Scientific and commercial method of beekeeping for production of honey and wax is called as
  • Apiculture
  • Sericulture
  • Silviculture
  • Pisciculture
What is a callus in plant tissue culture?
  • Mass of parenchyma cells
  • Mass of chollenchyma cells
  • Mass of smooth cells
  • None of the above
Callus culture is useful for purposes like
  • It helps in the production of secondary plant products.
  • It is useful for the synthesis of starting compounds that are subsequently modified to yield the desired product.
  • It is the starting materials for vegetative propagation of plants.
  • All of the above
The part of plant used for culturing is called ___________.
  • Scion
  • Explant
  • Stock
  • Callus
Which is not applicable to the biological species concept?
  • Hybridization
  • Natural population
  • Reproductive isolation
  • Gene Pool
The term 'aquaculture' means
  • Aspergillosis
  • Inland fisheries
  • Marine fisheries
  • Both B and C
Honey bee is regarded as a social insect, because
  • Bees interact within each other
  • Makes honey for humans to eat
  • They have poisnous sting
  • None of these
Plant tissue culture is used widely in
  • Large-scale growth of plant cells in liquid culture in bioreactors for the production of valuable compounds, like plant-derived secondary metabolites and recombinant proteins used as biopharmaceuticals
  • To conserve rare or endangered plant species
  • To cross distantly related species by protoplast fusion and regeneration of the novel hybrid
  • All of the above
The life span of a honey bee drone is
  • 1- 3 months
  • 3- 4 months
  • 6 - 7 months
  • 10 - 12 months
Exotic dairy breeds of cattle _________________.
  • Are non-indigenous breeds of cattle
  • Are only found in India
  • Both A and B
  • None of the above
The totipotent cell can form a ____________.
  • Bud
  • Cell membrane
  • Cell organella
  • Complete new organism
One of the following shows arrhenotoky in its development
  • Cyana fumea
  • Drosophilia melanogaster
  • Apis mellifera
  • Bonellia viridis
Which one of the following SCP organisms lack a membrane bound nucleus? 
  • Phycomycetes
  • Chlorella
  • Methanobacillus
  • Spirulina
A piece of plant tissue used in tissue culture is called as ______
  • Explant
  • Somaclone
  • Inoculant
  • Clone
Which of the following two hormones are essential for induced breeding of fishes?
  • TSH and ACTH
  • Oestrogen and progesterone
  • FSH and LH
  • Vassopressin and oxytocin
Pisciculture is roaring and production of 
  • Fishes
  • Birds
  • Reptiles
  • Wool yielding animals

By using single-cell protein, amount of protein that can be produced by algae grown in ponds (per acre) is

  • 20 tons
  • 30 tons
  • 40 tons
  • 50 tons

Protein content which is extracted from mixed or pure cultures of yeasts, bacteria, algae and fungi is called

  • Fibrous protein
  • Single cell protein
  • Globular protein
  • Cell protein

One of the limitation for SCP production from alkanes is the

  • Formation of carcinogen
  • Low nutrient content
  • Cannot be given to cattle
  • None of the above

Single cell production is enabled through

  • Batch operation systems
  • Continuous operation systems
  • Discontinuous operation system
  • Unique operation system

SCP is rich in amino acids

  • Lysine
  • Methionine
  • Arginine
  • Both A and B

In India, Spirulina is promoted as a diet supplement by

  • Fluid Control Research Institute (FCRI)
  • Central Food Technology Research Institute (CFTRI)
  • Central Institute of Agricultural Engineering (CIAE)
  • Central Drug Research Institute (CDRI)

The extraction of single cell protein is a

  • Costly process
  • Microorganisms are present in very high concentration
  • Must be hydrated to prevent spoilage
  • None of the above

All of the following are raw materials for SCP production except

  • Molasses
  • Methanol
  • Methyne
  • Cellulose

Substrate used by microorganisms to produce single-cell proteins includes

  • Methane gas
  • Industrial wastes
  • Agricultural wastes
  • All of the above
A true breeding plant is 
  • Near homozygous and produces offspring of its own kind.
  • Always homozygous recessive in its genetic constutition.
  • One that is able to breed on its own.
  • Produced due to cross-pollination among the unrelated plants.

Which microorganism is used for processing of molasses 

  • Aspergillus
  • Agaricus
  • Saccharomyces
  • Both A and C
Which of these protect the hive, collect nectar and pollen and look after the eggs?
  • Queen bee
  • Worker bee
  • Drone
  • Male bee

Which of the following is not employed in single cell protein production?

  • Chlorella
  • Aspergillus
  • Clostridium
  • Saccharomyces

What is the advantage of utilizing wastes for the production of SCP?

  • Conversion of low-cost organic wastes to useful products.
  • Reduction in environmental pollution.
  • Low cost production.
  • Both A and B.
Which of these build the hive, collect nectar and pollen, clean the cells and protect the hive?
  • Queen bee
  • Worker bee
  • Drone
  • Male bee

The action of bacterium Methylophilus methylotropus on methanol produces

  • Pruteen
  • Mycoprotein
  • Ethanol
  • Both A and B
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