MCQs for Biology Class 12 with Answers Chapter 9 Strategies for Enhancement in Food Production
Students of class 12 Biology should refer to MCQ Questions Class 12 Biology Strategies for Enhancement in Food Production with answers provided here which is an important chapter in Class 12 Biology NCERT textbook. These MCQ for Class 12 Biology with Answers have been prepared based on the latest CBSE and NCERT syllabus and examination guidelines for Class 12 Biology. The following MCQs can help you to practice and get better marks in the upcoming class 12 Biology examination
Chapter 9 Strategies for Enhancement in Food Production MCQ with Answers Class 12 Biology
MCQ Questions Class 12 Biology Strategies for Enhancement in Food Production provided below have been prepared by expert teachers of grade 12. These objective questions with solutions are expected to come in the upcoming Standard 12 examinations. Learn the below provided MCQ questions to get better marks in examinations.
Question. Inbreeding depression
(a) usually increases fertility only.
(b) usually reduces productivity only.
(c) usually reduces fertility and productivity.
(d) usually increases fertility and productivity.
Question. Which one of the following is a new breed of sheep developed in Punjab by crossing Bikaneri ewes and Marino rams?
(b) White Leghorn
Question. Which one of the following is a marine fish?
(d) Common Carp
Question. Which of the following species of honeybee is reared in artificial hives?
(a) Apis indica
(b) Apis florea
(c) Apis rohita
(d) Apis dorsata
Question. Protoplast is
(a) another name for protoplasm
(b) an animal cell
(c) a plant cell without a cell wall
(d) a plant cell.
Question. The new varieties of plants are produced by
(a) selection and hybridization.
(b) mutation and selection.
(c) introduction and mutation.
(d) selection and introduction.
Question. Which one of the following technique is used for the manipulation of plant species in order to create desired plant types that are better suited for cultivation and give better yields and are disease resistant?
(d) Plant breeding
Question. The technique of obtaining large number of plantlets by tissue culture method is called _______ .
(c) plantlet culture
(d) organ culture
Question. In tissue culture medium, the embryoids formed from pollen grains is due to
(a) cellular totipotency
(c) double fertilization
(d) test-tube culture
Question. Protoplast of two different species are fused in _______.
(b) somatic hybridization
(c) clonal propagation
Question. Select the correct statement(s).
(i) IARI has released a mustard variety rich in vitamin C.
(ii) Pusa Sawani, a variety of Okra is resistant to aphids.
(iii) Hairiness of leaves provides resistance to insect pests.
(iv) Agriculture accounts for approximately 33% of India’s
GDP and employs nearly 62% of the population.
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i), (iii) and (iv)
(d) None of these
Question. To isolate protoplast, one needs
(c) both pectinase and cellulase
Question. Which of the following statement is correct?
(a) Sonalika and Kalyan sona were low yielding and disease resistant crops.
(b) Saccharum barberi had high sugar content and yield, but was originally grown in north India.
(c) Saccharum officinarum had thicker stems and higher sugar content, but did not grow well in north India.
(d) Both (a) and (c)
Question. Which of the following is not correctly matched with its variety?
(a) Brassica (rapeseed mustard) – Pusa Gaurav
(b) Cowpea – Pusa Sadabahar
(c) Flat been –Pusa sem 2
(d) Okra (Bhindi) – Pusa A- 4
Question. In virus-infected plants the meristematic tissues in both apical and axillary buds are free of virus because
(a) the dividing cells are virus resistant
(b) meristems have anti viral compounds
(c) the cell division of meristems are faster than the rate of viral multiplication
(d) Viruses cannot multiply within meristem cell(s).
Question. Which one of the following products of apiculture is used in cosmetics and polishes
(d) Royal jelly
Question. Which of the following is a variety of Brassica resistant to white rust disease?
(b) Pusa komal
(c) Pusa swarnim (Karan rai)
(d) Pusa Sadabahar
Question. The entire collection (of plants/ seeds) having all the diverse alleles for all genes in a given crop is called _________. collection.
Question. The biggest compulsion of plant breeding is
(b) trained manpower.
(c) transfer of genes from unrelated sources.
(d) availability of desirable gene in the crop and its wild relatives.
Question. Which of the following is the consequence of plant diseases?
(a) Reduced yield and lower quality of produce.
(b) Reduced yield, lower quality of produce and increased cost of production.
(c) Reduced yield, lower quality of produce and poisonous produce.
(d) Reduced yield, lower quality of produce, increased cost of production and poisonous produce
Question. A branch of science that deals with the maintenance of hives of honeybees for the production of honey is called ______.
Question. Which of the following techniques used in animal biotechnology are required for the rapid multiplication and production of animals with a desirable genotype ?
(a) Protoplast fusion and embryo transfer.
(b) Hybrid selection and embryo transfer.
(c) In vitro fertilization and embryo transfer.
(d) All of the above
Question. Somaclonal variation appears in
(a) organisms produced through somatic hybridization.
(b) plants growing in highly polluted conditions.
(c) apomictic plants.
(d) tissue culture raised plants
Question. Several South Indian states raise 2-3 crops of rice annually. The agronomic feature that makes this possible is because of
(a) shorter rice plant
(b) better irrigation facilities
(c) early yielding rice variety
(d) disease resistant rice variety.
Question. On the basis of the following process, answer the question.
(i) gene transfer
(ii) transfer of cytoplasm
(iii) production of useful allopolyploids
Which of the following term is used in the given process?
(a) Somatic hybrid
(b) Single cell protein
(c) Bio – fortification
(d) None of the above
Question. Somaclones are obtained by
(a) plant breeding
(c) genetic engineering
(d) tissue culture
Question. Which of the following statements is correct
(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. Breeding of crops with high levels of minerals, vitamins and proteins is called
(a) somatic hybridization
Question. Superovulation is induced by
(a) artificial insemination
(b) more mating
(c) hormonal injection
(d) Any of these
Question. A collection of all the alleles of all the genes of a crop plant is called
(a) germplasm collection
(b) protoplasm collection
(d) somaclonal collection
Question. “Jaya” and “Ratna” developed for Green revolution in India are the varieties of
Question. Which of the following statement(s) is/are correct?
(i) Fishery is an industry, which deals with catching,
processing and marketing of fishes and other aquatic animals such as prawn, crab, lobster, edible oyster, etc. that have a high economic value.
(ii) Both aquaculture and pisciculture are same.
(iii) The development and flourishing of the fishery industry is called silver revolution.
(a) Only (i)
(b) Both (ii) and (iii)
(c) Both (i) and (iii)
(d) All of these
Question. ‘Himgiri’ developed by hybridization and selection for disease resistance against rust pathogens in a variety of
Question. In plant breeding programmes, the entire collection (of plants seeds) having all the diverse alleles for all genes in a given crop is called
(a) evaluation and selection of parents
(b) germplasm collection
(c) selection of superior recombinants
(d) cross-hybridisation among the selected parents.
Question. A protoplast is a cell
(a) undergoing division
(b) without cell wall
(c) without plasma membrane
(d) without nucleus.
Question. The biggest constraint of plant breeding is
(a) availability of desirable gene in the crop and its wild relatives
(c) trained manpower
(d) transfer of genes from unrelated sources.
Question. Inbreeding is carried out in animal husbandry because it
(a) increases vigour
(b) improves the breed
(c) increases heterozygosity
(d) increases homozygosity
Question. The scientific process by which crop plants are enriched with certain desirable nutrients is called
(a) crop protection
Question. Bull semen for the purpose of artificial insemination is stored in
(b) liquid oxygen
(c) liquid nitrogen
(d) liquid CO2
Question. Crop improvement is possible through
(a) judicious combination of selection, introduction and hybridization.
(c) scientific improvement of cultivated plants.
Question. Which one of the following is not a fungal disease?
(a) Rust of wheat
(b) Smut of Bajra
(c) Black rot of crucifers
(d) Red rot of sugarcane
Question. Fungicides and antibiotics are chemicals that
(a) enhance yield and disease resistance
(b) kill pathogenic fungi and bacteria, respectively
(c) kill all pathogenic microbes
(d) kill pathogenic bacteria and fungi respectively.
Question. Given below are a few statements regarding somatic hybridisation.
Choose the correct statements.
(i) Protoplasts of different cells of the same plant are fused
(ii) Protoplasts from cells of different species can be fused
(iii) Treatment of cells with cellulase and pectinase is mandatory
(iv) The hybrid protoplast contains characters of only one parental protoplast.
(a) (i) and (iii)
(b) (i) and (ii)
(c) (i) and (iv)
(d) (ii) and (iii)
Question. Plants derived sexually from the same plant are _______while those derived from somatic tissue from the same plant are ______________.
(a) identical, different
(b) different, also different
(c) different, identical
(d) identical, also identica
Question. An explant is
(a) dead plant
(b) part of the plant
(c) part of the plant used in tissue culture
(d) part of the plant that expresses a specific gene.
Question. Micro-propagation is
(a) propagation of microbes in vitro
(b) propagation of plants in vitro
(c) propagation of cells in vitro
(d) growing plants on smaller scale.
Question. Which one of the following combination would a sugarcane farmer look for in the sugarcane crop?
(a) Thick stem, long internodes, high sugar content and disease resistant
(b) Thick stem, high sugar content and profuse flowering
(c) Thick stem, short internodes, high sugar content, disease resistant
(d) Thick stem, low sugar, content, disease resistant
Question. 33 percent of India’s Gross Domestic Product comes from
(d) small-scale cottage industries
Question. A group of animals which are related by descent and share many similarities are referred to as
We hope the above multiple choice questions for Class 12 Biology for Chapter 9 Strategies for Enhancement in Food Production provided above with answers based on the latest syllabus and examination guidelines issued by CBSE, NCERT and KVS are really useful for you. Strategies for Enhancement in Food Production is an important chapter in Class 12 as it provides very strong understanding about this topic. Students should go through the answers provided for the MCQs after they have themselves solved the questions. All MCQs have been provided with four options for the students to solve. These questions are really useful for benefit of class 12 students. Please go through these and let us know if you have any feedback in the comments section.