Please refer to Chapter 9 Strategies for Enhancement in Food Production MCQ Class 12 Biology with answers below. These multiple-choice questions have been prepared based on the latest NCERT book for Class 12 Biology. Students should refer to MCQ Questions for Class 12 Biology with Answers to score more marks in Grade 12 Biology exams. Students should read the chapter Strategies for Enhancement in Food Production and then attempt the following objective questions.

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

The Strategies for Enhancement in Food Production MCQ Class 12 Biology provided below covers all important topics given in this chapter. These MCQs will help you to properly prepare for exams.

Question. Green revolution in India was possible due to
(a) better irrigation, fertilizers and pesticide facilities
(b) exploitation of high yielding varieties
(c) intensive cultivation
(d) All of the above

Question. Which of the following diseases is/are poultry disease?
A. aspergillosis
B. rainhat disease
C. gill rot
D. black rot.
(a) Both A and B
(b) Both C and D
(c) Only C
(d) Only D

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

Question. Electrofusion or chemofusion is used for-
(a) Cloning
(b) Mutations
(c) Protoplast fusion
(d) Eugenics

Question. What was the colour of high yielding Mexican wheat?
(a) White
(b) Pink
(c) Red
(d) Grey

Question. One of the following is an improved variety of chicken -‘
(a) Jersey
(b) Leg horn
(c) Himigiri
(d) Kalyan Sona

Question. Protection of genetic resources is called
(a) Genetic drift
(b) Gene pool
(c) Genetic conservation
(d) Gene flow

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. Tissue culture technique can produce indefinite number of new plants from a small parental tissue. The economic importance of the technique is in raising
(a) variants through picking up somaclonal variation
(b) genetically uniform population of an elite species
(c) homozygous diploid plants .
(d) development of new species.

Question. Triticale is the first man made cereal crop. The combination of parents involve its production is Triticum and
(a) Sorghum
(b) Barley
(c) Saccharum
(d) Rye

Question. The set pollinated progeny of a homozygous plant constitute a
(a) Pure line
(b) Mixed population
(c) Mass selection
(d) Heterosis

Question. Crosses between two plants by the same variety are called
(a) Interspecific
(b) Intervarietai
(c) intravarietai
(d) Intergeneric

Question. Which one of the following characters was most important for selection of present day maize plants ?
(a) Herbaceous habit
(b) Unisexual flowers
(c) Cobs covered tightly by spathes
(d) Annual life span

Question. What is the common name of Tritium gonococcus?
(a) Emmer Wheat
(b) Wild Einkorn
(c) Domesticated Einkorn
(d) Common bread wheat

Question. Which of the following procedures is/are followed in dairy farm management?
A. regular inspections and visits by veterinary doctors
B. usage of manure to increase crop yields
C. adequate environmental condition is provided
D. weeding away unproductive and harmful plants from the brood house.
(a) A and Bare correct
(b) A and Care correct
(c) C and D are correct
(d) All are’correct

Question. The plant part which is used to culture is called
(a) Explant
(b) Endplant
(c) Transplant
(d) Callus

Question. The process of cultivating and bringing about certain changes in the wild forms so that they yield better under artificial growing conditions is called
(a) domestication
(b) breeding
(c) conservation
(d) selection.

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. Which of the following points should be kept into consideration for successful bee keeping?
A. selection of suitable location for keeping the beehives
B. light management according to the habits of honey bees
C. knowledge of the behaviour of honey bees
D. handling and collection of honey and bee wax.
(a) A, B, C
(b). A, C, D
(c) A, B, C, D
(d) None

Question. Which of the following methods is/are used in recovery of healthy plants from diseased plants?
(a) embryo culture
(b) meristem culture
(c) suspension culture
(d) anther culture.

Question. A breed of cow is mated with closely related breed for five generations. It was found that production of milk has reduced subsequently and the animals are not keeping good health. Which of following methods of animal breeding can overcome this problem?
(a) hybridisation
(b) controlled breeding
(c) outcrossing
(d) cross breeding

Question. In shoot and root culture, excess of auxin in the medium will promote
(a) shoot culture
(b) root culture
(c) both shoot and root culture
(d) none of these.

Question. The application of induced mutations for crop improvement is called
(a) Mutation breeding
(b) Apomixis
(c) Adventive embryony
(d) Cloning

Question. What was the source of first induced mutations?
(a) Gamma ray
(b) UV-irradiation
(c) X-ray
(d) Cosmic rays

Question. The most common sources of single cell protein are
(a) yeasts
(b) bacteria
(c) other fungi
(d) All of these

Question. Mule is produced by a cross between
(a) a mare and a donkey
(b) a female donkey and a male horse
(c) a male and a female donkey
(d) a male and a female horse.

Question. In hybridization the haploids combine the advantages of
(a) recombination
(b) segregation
(c) fixation
(d) All of the above

Question. Amino acids present in improved varieties of maize are
(a) methionine and alanine
(b) alanine and cysteine
(c) methionine and cysteine
(d) lysine and tryptophan.

Question. Improved rice variety IR-8 has been introduced in India from
(a) Taiwan
(b) Japan
(c) Philippines
(d) Bangladesh.

Question. Disease free plants are obtained from
(a) Anther culture
(b) Ovary culture
(c) Shoot-apex culture
(d) Root-apex culture

Question. Which of the following is/are the advantage(s) of micropropagation?
(a) it helps in rapid multiplication of plants
(b) it helps in production of soma clones
(c) it is an easy, safe and economical method for plant propagation.
(d) All of the above

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

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. Which one of the following is called macaroni wheat which is mainly used for preparing pasta and noodles?
(a) Tritium turgid
(b) Tritium durum
(c) Tritium sentoids
(d) Tritium tauschii

Question. Multiple ovulation embryo transfer technology (MOET) induces which of the following in cow?
(a) super ovulation
(b) follicular maturation in ovary
(c) ovulation
(d) Both a and b

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. 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. 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 loss of genes from a gene pool is called
(a) Gene knockout
(b) Gene flow
(c) Gene shift
(d) Genetic erosion

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

Question. Haploids are considered better genetic stock because they
(a) Need only half of the total nutrients
(b) Are best for cytological studies
(c) Grow better under all conditions
(d) Form homozygous individuals on diplodization

Question. The indica variety-of rice is crossed with japonica variety of rice because the later are
(a) high yielding
(b) resistant to diseases
(c) cheaper
(d) short-life cycled annual

Question. Wild varieties of plants must be conserved to –
(a) Maintain ecosystem
(b) Feeding wild animals
(c) Future evolution
(d) Incorporate useful traits in future crop varieties

Question. In which crops is the method of mass selection applied.
(a) Cross-pollinated
(b) Self-pollinated
(c) Both self and cross-pollinated
(d) Potato and sugarcane

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