CBSE Class 12 Biology Strategies for Enhancement in Food Production MCQs

Refer to CBSE Class 12 Biology Strategies for Enhancement in Food Production MCQs provided below. CBSE Class 12 Biology MCQs with answers available in Pdf for free download. The MCQ Questions for Class 12 Biology with answers have been prepared as per the latest syllabus, CBSE books and examination pattern suggested in Class 12 by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 9 Strategies for Enhancement in Food Production are an important part of exams for Class 12 Biology and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 12 Biology and also download more latest study material for all subjects

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

Class 12 Biology students should refer to the following multiple-choice questions with answers for Chapter 9 Strategies for Enhancement in Food Production in Class 12. These MCQ questions with answers for Class 12 Biology will come in exams and help you to score good marks

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

Question : India and China have more than 70% of world livestock population and produce the following percentage of world farm.

a) 10 %
b) 25 %
c) 40 %
d) 50 %

Answer : B


Question :  When breeding is between animals of the same breed it is called ______________, while crosses between different breeds are called

a) out-breeding; inbreeding
b) inbreeding; out-breeding
c) out breeding; cross-breeding
d) cross-breeding; inbreeding

Answer : B


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.

Answer : C 


Question : Which one of the following is a new breed of sheep developed in Punjab by crossing Bikaneri ewes and Marino rams?

a) Hisardale
b) White Leghorn
c) Assel      
d) Langshan

Answer : A


Question : The 'mule' is the result of

a) inbreeding depression
b) out-breeding
c) cross-breeding
d) inter-specific hybridization

Answer : D


Question : MOET stands for

a) Multiple Ovulation and Embryo Transfer Technology
b) Multiple Ovulation Energy Transport Technology
c) Method of Ovulation Energy Transfer Technology
d) Method of Ovulation Energy Transport Technology

Answer : A 


Question : Which of the following stage is transferred to surrogate mothers in livestock breeding experiments?

a) Unfertilized eggs       
b) Fertilized eggs
c) 8 to 32 celled embryo
d) Frozen semen

Answer : C

 

Question : A branch of science that deals with the maintenance of hives of honeybees for the production of honey is called

a) aquaculture
b) pisciculture
c) apiculture   
d) sericulture

Answer : C 


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

Answer : C


Question : Which one of the following is a freshwater fish?

a) Catla             
b) Rohu
c) Common carp
d) All of these

Answer : D

 

Question :  The chances of contacting bird flu from a properly cooked (above 100°C) chicken and egg are

a) None of these

b) moderate

c) high

d) very high

Answer :  None of these

 

Question :  A group of animals which are related by descent and share many similarities are referred to as

a) breed

b) race

c) variety

d) species

Answer :  breed

 

Question :  Inbreeding is carried out in animal husbandry because it

a) increases homozygosity

b) increases heterozygosity

c) improves the breed

d) increases vigour

Answer :  increases homozygosity

 

Question :  Sonalika and Kalyan Sona are varieties of

a) wheat

b) rice

c) millet

d) tobacco

Answer :  wheat

 

Question :  Which one of the following is not a fungal disease?

a) Black rot of crucifers

b) Smut of Bajra

c) Rust of wheat

d) Red rot of sugarcane

Answer :  Black rot of crucifers

 

Question :  In virus-infected plants the meristematic tissues in both apical and axillary buds are free of virus because

a) the cell division of meristems are faster than the rate of viral multiplication

b) Viruses cannot multiply within meristem cell (s).

c) meristems have anti viral compounds

d) the dividing cells are virus resistant

Answer :  the cell division of meristems are faster than the rate of viral multiplication

 

Question :  Several South Indian states raise 2-3 crops of rice annually. The agronomic feature that makes this possible is because of

a) early yielding rice variety

b) better irrigation facilities

c) shorter rice plant

d) disease resistant rice variety

Answer :  early yielding rice variety

 

Question :  Which of the following is not used for crop improvement?

a) Introduction

b) Hybridization

c) Mutations

d) Inbreeding

Answer :  Introduction

 

Question :  Pulses usually lack amino acids

a) Cysteine and methionine

b) methionine

c) methionine

d) methionine

Answer :  Cysteine and methionine

 

Question :  Which part is most suitable for raising virus free plants in micropropagation

a) Meristem

b) Node

c) Vascular tissue

d) Bark

Answer :  Meristem

 

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, conten, disease resistant

Answer :  Thick stem, long internodes, high sugar content and disease resistant

 

Question :  Fungicides and antibiotics are chemicals that

a) kill pathogenic fungi and bacteria, respectively

b) enhance yield and disease resistance

c) kill all pathogenic microbes

d) kill pathogenic bacteria and fungi respectively

Answer :  kill pathogenic fungi and bacteria, respectively

 

Question :  Use of certain chemicals and radiation to change the base sequences of genes of crop plants is termed

a) mutation breeding

b) gene therapy

c) transgenic mechanism

d) recombinant DNA technology

Answer :  mutation breeding

 

Question :  The scientific process by which crop plants are enriched with certain desirable nutrients is called

a) bio-fortification

b) bio-remediation

c) breeding

d) crop protection

Answer :  bio-fortification

 

Question :  The term ‘totipotency’ refers to the capacity of a:

a) cell to generate whole plant

b) bud to generate whole plant

c) seed to germinate

d) cell to enlarge in size

Answer :  cell to generate whole plant

 

Question :  Grains of major cereals and millets lack amino acids

a) Lysine and tryptophan

b) Tryptophan and cysteine

c) Tryptophan and cysteine

d) Tryptophan and cysteine

Answer :  Lysine and tryptophan

 

Question :  Identify the edible fresh water teleost

a) Catla catla

b) Hilsa ilisha

c) Rays and skates

d) None of these

Answer :  Catla catla

 

Question :  The desired varieties of economically useful crops are raised by

a) Hybridisation

b) Natural selection

c) Vernalisation

d) Mutation

Answer :  Hybridisation

 

Question :  Cross between unrelated organisms is

a) Hybrid

b) Back cross

c) Heterosis

d) Test cross

Answer :  Hybrid

 

Question :  Pisciculture is rearing and production of

a) Fishes

b) Birds

c) Reptiles

d) Reptiles

Answer :  Fishes

 

Question : In crop improvement programme, haploids are important because they        

a) require one half of nutrients

b) are helpful in study of meiosis

c) grow better under adverse conditions

d) form perfect homozygous

Answer : D

 

Question :  Triticale has been evolved by intergeneric hybridization between           

a) wheat and rye

b) wheat and rice

c) rice and maize

d) wheat and Aegilops

Answer : A

 

Question :   Pulses are obtained from                        

a) Fabaceae

b) Asteraceae

c) Poaceae

d) Solanaceae

Answer : A

 

Question :  Most of our crop plants are                     

a) autopolyploid in origin

b) allopolyploid in origin

c) mixed genotypic in origin

d) heterozygous in origin

Answer : A

 

Question :  Haploid plant cultures are got from  
a) leaves                 
b)  root tip
c) pollen grain         
d) buds
Answer : C

 

Question :  The silk worm silk is the product of  

a) cuticle of the larva

b) cuticle of the adult

c) salivary gland of the larva

d) salivary gland of the adult

Answer : C

 

Question :  The alkaloid ajmalicine is obtained from
a) Atropa               
b)  Papaver
c) Curcuma           
d) Sarpgandha
Answer : D

 

Question :  The earliest animal to have been domesti- cated by man was most likely the           
a) horse                  
b)  cow
c) dog                      
d) pig
Answer : C

 

Question :  Pebrine is a disease of                              
a) honey bee           
b)  fish
c) silk worm          
d) lac insect
Answer : C

 

Question :  Honey is                                                      
a) acidic                
b)  neutral
c) alkaline
d) basic after some days
Answer : A

 

Question :  High milk yielding varieties of cows are ob- tained by       
a) super ovulation
b) artificial insemination
c) use of surrogate mother
d) All of the above
Answer : D

 

Question :  Of the world’s top five crops (in terms of an- nual production

a) three belong to Poaceae (Gramineae), one to Leguminosae, one to Solanaceae

b) four   be long   to   Poaceae ,   one   to Leguminosae

c) four belong to Poaceae, one to Solanaceae

d) all five belong to Poaceae

Answer : C

 

Question :  Which plant will loss its economic value, if its fruits are produced by induced partheno- carpy ?
a) Grape                 
b)  Pomegranate
c) Orange               
d) Banana

Answer : B

 

Question :  The reason why vegetatively reproducing crop plants are best suited for maintaining hybrid vigour is that                           

a) they can be easily propagated

b) they have a longer life span

c) they are more resistant to disease

d) once a desired hybrid is produced, there are no chances of losing it

Answer : D

 

Question :  The term aquaculture means                     

a) aspergillosis

b) inland fisheries

c) marine fisheries

d) Both b) and c)

Answer : D

 

Question :  The new varieties of plants are produced by

a) selection and hybridization

b) selection and introduction

c) mutation and selection

d) introduction and mutation

Answer : A

 

Question :  One of the most important reason why wild plants should thrive is that these are good sources of         

a) unsaturated edible oils

b) highly nutritive animals feed

c) genes for resistance to diseases and pests

d) rare and highly sought after fruits of medical importance

Answer : C

 

Question :  Before the European invaders which veg- etable was/were absent in India ?    

a) Potato and tomato 

b) Simla mirch and brinjal

c) Maize and chichinda

d) Bitter gourd

Answer : A

 

Question :  Which statement is correct about centre of origin of plants? 

a) More diversity in varieties

b) Frequency of dominant gene is more

c) Climatic conditions more favourable

d) None of the above

Answer : A

 

Question :  Which of the following crops have been brought to India from New world ?   

a) Cashewnut, potato, rubber

b) Mango, tea

c) Tea, rubber, mango

d) Coffee

Answer : A

 

Question :  India’s wheat yield revolution in the 1960s was possible primarily due to          

a) hybrid seeds

b) increased chlorophyll content

c) mutations resulting in plant height reduction

d) quantitative trait mutations

Answer : C

 

Question :  The name of Norman Borlaug is associated with             

a) Green revolution

b) Yellow revolution

c) White revolution

d) Blue revolution

Answer : A

 

Question :  The world’s highly prized wool yielding ‘Pashmina’ breed is                                 

a) sheep

b) goat

c) goat-sheep cross

d) Kashmiri sheep-Afghan sheep cross

Answer : B

 

Question :  Which of the following is generally used for induced mutagenesis in crop plants ? 

a) Alpha particles

b) X-rays

c) UVrays (260 nm)

d) Gamma rays (from cobalt 60)

Answer : D

 

Question :  Why is vivipary an undesirable character for annual crop plants ? 

a) It reduces the vigour of plant

b) The seeds cannot be stored under normal conditions for the next season

c) The seeds exhibit long dormancy

d) It adversely affects the fertility of the plant

Answer : B

 

Question :  Three crops that contribute maximum to glo- bal food grain production are      

a) wheat, rice and maize

b) wheat, maize and sorghum

c) rice, maize and sorghum

d) wheat, rice and barley

Answer : A

 

Question :  Crop plants grown in monoculture are 

a) low in yield

b) free from intraspecific competition

c) characterized by poor root system

d) highly prone to pests

Answer : D

 

Question :  Triticale, the first man-made cereal crop, has been obtained by crossing wheat with 

a) rye

b) pearl millet

c) sugarcane

d)  barley

Answer : A

 

Question :  Parthenocarpic tomato fruits can be pro- duced by 

a) removing androecium of flowers before pollen grains are released

b) treating the plants with low concentra- tions of gibberellic acid and auxins

c) raising the plants from vernalized seeds

d) treating the plants with phenyl mercuric acetate

Answer : B

 

Question :  Which one of the following pair of organ- isms are exotic species introduced in India ? 

a) Ficus religiosa, Lantana camara

b)  Lantana camara, Water hyacinth

c)  Water hyacinth, Prosopis cinereria

d) Nile perch, Ficus religiosa

Answer : C

 

Question : Which one of the following is/are marine fish?

a) Rohu      
b) Hilsa
c) Mackerel
d) Both b) and c)

Answer : D


Question :   33 percent of India’s GDP (Gross Domestic Product) comes from ______________ and employs _____________ percent of the population.

a) industry; 70
b) agriculture; 62
c) export; 30  
d) agriculture; 75

Answer : B


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.

Answer : A


Question : Which of the following is a variety of Brassica resistant to white rust disease?

a) Himgiri                            
b) Pusa komal
c) Pusa swarnim (Karan rai)
d) Pusa Sadabahar

Answer : C


Question : Pusa Snowball K–1 is a variety of

a) wheat  
b) chilli
c) cowpea
d) cauliflower

Answer : D


Question : Which of the following processes is used for creating genetic variation by changing the base sequence within genes resulting in the creation of a new character or trait not found in the parental type?

a) Selection
b) Hybridization
c) Mutation
d) Breeding

Answer : C

 

Question : Which of the following is generally used for induced mutagenesis in crop plants?

a) X-rays                                  
b) UV (260 nm) radiations
c) Gamma rays (from cobalt 60)
d) Alpha particles

Answer : C


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?

a) Out-breeding   
b) Out-crossing
c) Cross-breeding
d) Plant breeding

Answer : D

 

Question : The entire collection (of plants/ seeds) having all the diverse alleles for all genes in a given crop is called _________. collection.

a) germplasm
b) genome
c) genebank 
d) genotype

Answer : C

 

Question : In Abelmoschus esculentus (bhindi), resistance genes are transferred from a wild species against yellow mosaic virus and resulted in a new variety of A. Esculentus called _____

a) Pusa swarnim    
b) Himgiri
c) Pusa sadabahar
d) Parbhani kranti

Answer : D

 

Question :  Given below are a few statements regarding somatic hybridization. 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) (ii) and (iii)

b) (iii) and (ii)

c) (i) and (ii)

d) (ii) and (iii)

Answer : A

 

Question :  An explant is:

a) part of the plant used in tissue culture

b) part of the plant that expresses a specific gene

c) part of the plant

d) dead plant

Answer :  A

  

Question :  The biggest constraint of plant breeding is

a) transfer of genes from unrelated sources.

b) trained manpower

c) availability of desirable gene in the crop and its wild relatives

d) infrastructure

Answer :  A

 

Question :  Lysine and tryptophan are

a) essential amino acids

b) aromatic and no acids

c) non-essential amino acids

d) proteins

Answer :  A

 

Question :  Micro-propagation is

a) propagation of plants in vitro

b) propagation of microbes in vitro

c) propagation of cells in vitro

d) growing plants on smaller scale

Answer :  A

 

Question :  Protoplast is:

a) a plant cell without a cell wall

b) a plant cell

c) an animal cell

d) another name for protoplasm

Answer :  A

 

Question :  Cod liver oil is rich in

a) Cod liver oil is rich in

b) K vitamin

c) C vitamin

d) None of these

Answer :  A

 

Question :  Cross between two species of the same genus is

a) Cross between two species of the same genus is

b) Cross between two species of the same genus is

c) Interspecific hybridisation

d) Intergeneric hybridisation

Answer :  A

 

Question :  ___________ is a breed of cattle

a) Jersey

b) Merino

c) Herdwick

d) None of these

Answer :  A

 

Question :  Gobar gas plants use __________ bacteria

a) Methanogenic

b) Cyanogenic

c) Oncogenic

d) Pyogenic bacteria

Answer :  A

 

Question :  To isolate protoplast, one needs

a) both pectinase and cellulase

b) chitinase.

c) cellulase

d) pectinase

Answer :  A

 

Question :  Which one of the following is a marine fish

a) Hilsa

b) Rohu

c) Catla

d) Common Carp.

Answer :  A

 

Question :  Which one of the following products of apiculture is used in cosmetics and polishes

a) wax

b) Royal jelly

c) honey

d) oil

Answer :  A

 

Question :  More than 70 per cent of livestock population is in

a) India and China

b) China

c) India

d) Denmark

Answer : A

 

Question :  The agriculture sector of India employs

a) 62 per cent of the population.

b) 30 per cent of the population

c) 70 per cent of the population

d) 60 per cent of the population

Answer :  A

 

Chapter 01 Reproduction in Organism
CBSE Class 12 Biology Reproduction in Organisms MCQs
Chapter 02 Sexual Reproduction in Flowering Plants
CBSE Class 12 Biology Sexual Reproduction in Flowering Plants MCQs
Chapter 03 Human Reproduction
CBSE Class 12 Biology Human Reproduction MCQs
Chapter 04 Reproductive Health
CBSE Class 12 Biology Reproductive Health MCQs
Chapter 05 Principles of Inheritance and Variation
CBSE Class 12 Biology Principles of Inheritance and Variation MCQs
Chapter 06 Molecular Basis of Inheritance
CBSE Class 12 Biology Molecular Basis of Inheritance MCQs
Chapter 09 Strategies for Enhancement in Food Production
CBSE Class 12 Biology Strategies for Enhancement in Food Production MCQs
Chapter 10 Microbes in Human Welfare
CBSE Class 12 Biology Microbes in Human Welfare MCQs
Chapter 11 Biotechnology Principles and Processes
CBSE Class 12 Biology Biotechnology Principles and Processes MCQs
Chapter 12 Biotechnology and its Applications
CBSE Class 12 Biology Biotechnology and Its Applications MCQs
Chapter 13 Organisms and Populations
CBSE Class 12 Biology Organisms and Populations MCQs
Chapter 15 Biodiversity and Conservation
CBSE Class 12 Biology Biodiversity and Conservation MCQs
Chapter 16 Environmental Issues
CBSE Class 12 Biology Environmental Issues MCQs

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