MCQ Questions Chapter 9 Strategies for Enhancement in Food Production Class 12 Biology

Please refer to MCQ Questions Chapter 9 Strategies for Enhancement in Food Production Class 12 Biology with answers provided below. These multiple-choice questions have been developed based on the latest NCERT book for class 12 Biology issued for the current academic year. We have provided MCQ Questions for Class 12 Biology for all chapters on our website. Students should learn the objective based questions for Chapter 9 Strategies for Enhancement in Food Production in Class 12 Biology provided below to get more marks in exams.

Chapter 9 Strategies for Enhancement in Food Production MCQ Questions

Please refer to the following Chapter 9 Strategies for Enhancement in Food Production MCQ Questions Class 12 Biology with solutions for all important topics in the chapter.

MCQ Questions Answers for Chapter 9 Strategies for Enhancement in Food Production Class 12 Biology

Question- Improved varieties of wheat suitable for Indian climates have been developed by
(a) hybridisation and mutation
(b) mutation and cloning
(c) cloning of polyploids
(d) polyploidy and hybridization

Question- Scientists are trying to get hybridisation between tomato and potato. The most accurate name would be
(a) topemo
(b) mopato
(c) pomato
(d) tomepo

Question- Triticum aestivum, the common bread wheat is
(a) Triploid with 21 chromosomes
(b) Tetraploid with 28 chromosomes
(c) Hexaploid with 42 chromosomes
(d) Diploid with 14 chromosomes

Question- Correct chronological order of the events occurring during callus culture is –
(a) Callus —> Cell division —> Explant —> Addition of cytokinin —> Acquire meristematic property
(b) Explant —> Callus —> Cell division —> Addition of cytokinin —> Cells acquire meristematic property
(c) Explant —> Cell dvision —> Callus —> Addition of cytokinin —> Cells acquire meristematic property
(d) Callus —> Explant —> Cell division —> Addition of cytokinin —> Cells acquire property

Question- Somaclonal variation can be obtained by
(a) Application of colchicine
(b) Hybridisation
(c) Irradiation with gamma rays
(d) Tissue culture

Question- Hybrid vigour is eroded through –
(a) Repeated crossing
(b) Repeated selection
(c) Vegetative propagation
(d) Repeated selfing

Question- Pomato
(a) is produce by hybridization between pome and tomato
(b) is the product of cross fertilization
(c) has all the desired combination of characteristics for its commercial utilization
(d) does not have all the desired combination of characteristics for its commercial utilization

Question- Mutations in red grained Sonara 64 variety of wheat resulted in the amber grain colour mutant
(a) Larma Rojo 64A
(b) Sharbati Sonara
(c) PusaLerma
(d) K-68

Question- Which of the following is the conventional method of plant breeding for disease resistance?
(a) polyploidy
(b) genetic engineering
(c) hybridisation
(d) mutation breeding

Question- Which of the following in linked to the discovery of Bordeaux mixture as a fungicide.
(a) Loose smut of wheat
(b) Black rust of wheat
(c) Bacterial leaf blight of rice
(d) Downy mildew of gropes

Question- Aims of plant breeding are to produce
(a) Disease-free varieties
(b) High-yielding varieties
(c) Early maturing varieties
(d) All the above

Question- Which of the following methods of breeding increases the chance of homozygosity?
(a) in breeding
(b) out breeding
(c) out crossing 
(d) cross breeding

Question- Farmers is a particular region are concerned that premature yellowing leaves of pulse crop night decrease the yield. Which treatment could be beneficial to obtain maximum seed yield.
(a) Frequent imitator of crop
(b) Treatment of the plants with cytokinin along with a small dose of nitrogen fertilizer
(c) Removal of all yellow leaves and spray the remaining green leaves with 2, 5 trichloropherony acetic acid
(d) Application of rin and magnesium pramole synthesis of chlorophyll

Question- Selection of homozygous plant is
(a) Mass selection
(b) Pure line selection
(c) Mixed selection
(d) None of the above

Question- Culture of isolated microspores results in the formation of
(a) Microgametophyte
(b) Male gametes
(c) Haploid embryoids
(d) Heterozygous embryoids

Question- Mature embryos are mostly
(a)Autotrophic
(b) Heterotrophic
(c) Parasitic
(d) Symbiotic

Question- The colour of high yielding Mexican wheats were not liked by the Indians. It was originally red grained. Their cultivation was adopted in India on large scale only when exposure to gamma radiations converted them to amber grained. Which of following methods of plant-breeding has been put into practise in the given case?
(a) polyploid breeding
(b) interspecific hybridisation
(c) genetic engineering
(d) mutation breeding

Question- Choose the correct answer
(a) Terminator genes helps in terminating seed germination
(b) Axenic culture is pure culture without any contamination
(c) Androgenic haploidy makes use of anther cells
(d) All of the above

Question- The ability of plant cell to give rise to an entire new plant is called
(a) Symmetry
(b) Differentiation
(c) Totipotency
(d) Dedifferentiation

Question- The new varieties of plants are produced by
(a) Introduction and selection
(b) Mutation and selection
(c) Selection and hybridization
(d) Introduction and Mutation

Question- Norman Borlang known as “Father of Seen Revolution” has developed new cultivating crops of-
(a) Paddy
(b) Rice
(c) Wheat
(d) Sugarcane

Question- A novel technique devised to produce vast quantities of strong and healthy plantlets by rapid vegetative multiplication under controlled conditions.
(a) Anther culture
(b) Polymerase Chain Reaction
(c) Micropropagation
(d) Protoplast fusion

Question- Central Sugar cane breeding research institute is situated at
(a) Lucknow
(b) Delhi
(c) Coimbatore
(d) Bhopal

Question- Haploid plantlets can be produced by
(a) Pollen culture
(b) Cotyledon culture
(c) Embryo culture
(d) Meristem culture

Question- The technique of obtaining large number of plantlets by tissue culture method is called
(a) Organ culture
(b) Micropropagation
(c) Macropropagation
(d) Plantlet culture

Question- Sterilization means
(a) Inactivation of microorganisms
(b) Temporary destruction of microorganisms
(c) Complete destruction or killing of microorganisms
(d) Induction of immunity in microorganisms

Question- The substance used for solidification of nutrient medium is
(a) 2,4-D
(b) Agaragar
(c) Alfa-alfa
(d) Yeast

Question- Who gave the idea that every plant cell is totipotent
(a) PR. White
(b) E.G. Cocking
(c) F.C. Steward
(d) G. Liaberlandt

Question- The emasculation of flower buds is achieved by the removal of
(a) Stigma
(b) Anthers
(c) Sepals
(d) Corolla

Question- A transgenic food crop which may Lelp in solving the problem of night blindress in developing countries is
(a) Bt. soybean
(b) Golden rice
(c) Flavrasve tomatoes
(d) star link maize

Question- Which one of the following is not a secondary metabolite?
(a) Resins
(b) Essential oils
(c) Amino acids
(d) Tannins

Question- Hybrid vigour is mostly due to
(a) Heterozygosity
(b) Superiority of all the genes
(c) Homozygosity of pure characters
(d) Mixing up of cytoplasm of the male with that of female exclusively

Question- ‘Norin gene1 of dwarfness in wheat originated through spontaneous mutation in
(a) India
(b) Japan
(c) Mexico
(d) U.S.S.R.

Question- Blindness is presented by use of which crop n poor correctly ?
(a) Golden rice
(b) Wheat
(c) Maize
(d) Oat

Question- An unorganised mass of cells is called
(a) Totipotent
(b) Explant
(c) Callus
(d) Corax

Question- In tissue culture medium, the embryoids formed from pollen grains is due to
(a) Cellular totipotency
(b) Organogenesis
(c) Double fertilization
(d) Test tube culture

Question- In the hexaploid wheat, the haploid (n) and basic (x) number of chromosomes are
(a) n = 21 andx = 21
(b) n = 21 and x= 14
(c) n = 21 and x = 7 
(d) n = 7 and x = 21

Question- Select the correct statements –
(a) A gene bank should not be regarded as a plant museum.
(b) The germplasm, stored in the gene bank are actively utilized by breeders to develop novel varieties.
(c) The phase between 1960-1970 is often called the Green Revolution.
(d) All of the above

Question- In hybridisation, the haploids combine the advantages of
(a) Recombination
(b) Segregation
(c) Fixation
(d) All of them

Question- Which of the following is the consequence of plant diseases?
(a) Reduced yield and lower qu ty of produce
(b) Reduced yield, lower qu ty of produce and increased cost of production –
(c) Reduced yield, lower qu ty of produce and poisonous produce
(d) Reduced yield, lower qu ty of produce, increased cost of production and poisonous produce

Question- Pure line breeds refer to
(a) Homozygosity and independent assortment
(b) Homozygosity only
(c) Heterozygosity
(d) Heterozygosity and linkage

Question- Most cultivated plants are
(a) Autopolyploids
(b) Allopolyploids
(c) Aneuploids
(d) Haploids

Question- Desired improved varieties of economically useful crops are raised by
(a) Natural selection
(b) Hybridisation
(c) Mutation
(d) Biofertiliser

Question- A self fertilizing trihybrid plant forms
(a) 4 different gametes and 16 different zygotes
(b) 8 different gametes and 16 different zygotes
(c) 8 different gametes and 32 different zygotes
(d) 8 different gametes and 64 different zygotes

Question- What is the common name of Triticum monococcum?
(a) EmmerWheat
(b) WildEinkorn
(c) Domesticated Einkorn
(d) Common bread wheat

Question- Which one of the following is a viral disease of poultry?
(a) Coryza
(b) New Castle disease (Rani khet)
(c) Pasteurellosis
(d) Salmonellosis

Question- A cybrid is a hybrid carrying
(a) cytoplasms of two different plants .
(b) genomes and cytoplasms of two different plants
(c) cytoplasms of two different plants and genome of one plant
(d) genomes of two different plants

Question- In maize, hybrid vigour is exploited by
(a) Crossing of two hybrid parental lines
(b) Harvesting seeds from the most productive plants
(c) Inducing mutations
(d) Bombarding the seeds with DMA

Question- A major application of embryo culture is
(a) Production of embryoids
(b) Overcoming hybridisation barriers
(c) Induction of somaclonal variations
(d) Clonal propagation

Question- India’s wheat yield revolution in the 1960s was possible primarily due to
(a) Increased chlorophyll content
(b) Mutations resulting in plant height reduction
(c) Quantitative trait mutations
(d) Hybrid seeds

Question- Embryo rescue is used for
(a) Establishing suspension culture
(b) Recovery of interspecific hybrids / difficult hybrids
(c) Somatic hybridization
(d) Haploid production

Question- Most nutritious among the following is
(a) Wheat
(b) Maize
(C) Bajra
(d) Rice

Question- Colchicine brings about
(a) Chromosome aberrations
(b) Duplication of chromosomes
(c) Gene mutations
(d) Quick replication

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