MCQ ON PLANT BREEDING class 12 for NEET

MCQ ON PLANT BREEDING class 12 for NEET | PLANT BREEDING class 12 | MCQ PLANT BREEDING with Answer | Check the below NCERT MCQ question for class 12 Biology based on the with Answers.

MCQ on PLANT BREEDING class 12 Biology with answers were prepared based on the latest pattern.We have provided class 12 Biology MCQs questions on PLANT BREEDING with Answers to help students understand the concept very well.

MCQ ON PLANT BREEDING is useful for NEET / CSIR / UGC / CBSE / ICSE / AIIMS / EXAM / AFMC EXAM / STATE LEVEL MEDICAL EXAM 2022-23, 2023-24

Introduction:
Traditional farming can only yield unlimited biomass as food for humans and animals. Better management practices and increase in acreage can increase yield but only to limited extent.Plant breeding as a technology has help increase yields to a very large extent.Who in india has not heard of green revolution which was responsible for our country to not merely meet the national requirements in food production but also helped us even to export it .Green revolution was dependent to a large extent on plant breeding techniques for development of high yielding and disease resistant varieties in wheat, rice , maize etc.

MCQ ON PLANT BREEDING class 12 for NEET

1. Emasculation of flower is carried out through removal of

(a) stigma
(b) sepals and petals
(c) anthers
(d) entire organism

Ans (c) anthers

2. Major use of embryo culture is in

(a) induction of Soma Colonal variations
(b) overcoming hybridisation barriers
(c) production of alkaloides
(d) clonal propagation

Ans. (b) overcoming hybridisation barriers

3. Heterosis is

(a) hybrid sterility
(b) hybrid vigour
(c) hybrid incompatibility
(d) hybrid invibility

Ans. (b) hybrid vigour

4. Which of the following is not is used for crop improvement

(a) inbreeding
(b) introduction
(c) hybridisation
(d) mutations

Ans.(a) Inbreeding

5. Haploid plant culture are got from

(a) leaves
(b) root tip
(c) pollen grains
(d) buds

Ans.(c) pollen grains

6. Somaclonal variations are the one

(a) caused by mutagens
(b) produced during tissue culture
(c) induced during sexual embryogeny
(d) caused by gamma rays

Ans.(b) produced during tissue culture

7. Androgenic haploids are used for

(a) raising stock for micropropadigation
(b) induction of mutations
(c) knowingeffects of all genes
(d) preparation of homozygous diploids

Ans.(d) preparation of homozygous diploids

8. The enzyme required to obtain wall free naked photoplasts are

(a) cellulosase and proteinase
(b) cellulase and pectinase
(c) cellulase and amylase
(d) amylase and pectinase

Ans.(b) cellulase and pectinase

9. Development of shoot and root in tissue culture is determined by

(a) cytokinin and auxin ratio
(b) enzyme
(c) temperatures
(d) plant nutrients

Ans. (a) cytokinin and auxin ratio

10. Plant plant medium used widely preparation of culture medium is got from

(a) cycas revoluta
(b) cocus nucifera
(c) pinus roxburghii
(d) borassus flabellifera

Ans. (b) cocus nucifera

11. Plant raised from single germinating pillen grain under cultural conditions would be

(a) diploid
(b) haploid
(c) triploid
(d) tetraploid

Ans.(a) haploid

12. pure line breeds refer to

(a) homozygousity and independent assortment
(b) homozygousity only
(c) heterozygosity
(d) heterozygosity and linkage

Ans . (b) homozygousity only

13. Quarantine regulations is meant for

(a) Preventing entry of disease plants
(b) spraying disease plants with insecticide
(c) promoting dry farming
(d) growing fruit trees in all the state.

Ans.(a) preventing entry of disease plants

14. New varients of plants are produced by

(a) selection and hybridisation
(b) mutations and selection
(c) introduction and mutations
(d) selection and introduction

Ans. (a) selection and hybridisation

15. The technique of obtaining large number of plantlet through tissue culture is

(a) micropropagation
(b) macroprogation
(c) organ culture
(d) plantlet culture

Ans.(a) micropropagation

16. Norman Borlaug is associated with

(a) white revolution
(b) green revolution
(c) blue revolution
(d) yellow revolution

Ans.(b) green revolution

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