CBSE Biology Domestication and Improvement of Plants Test Online

Test Name	Domestication and Improvement of Plants Test
Subject	CBSE Biology
Test Type	MCQs
Total Question	29
Total Marks	58
Total Time	25 Minutes
Test Help For	CBSE Biology. CBSE Board Exams. Entrance Exams. Admissions Test. Jobs Test. General Knowledge. All Grades Exams.

Complete knowledge preparation about Domestication and Improvement of Plants test as the concept of Domestic plants differ from their wild ancestors because they have been modified by human labor to meet specific human needs. Wild fruits, nuts, and berries were probably the first plant foods of ancient peoples. Later, humans learned to dig up roots and scrape or pound them to a paste for eating.

For preparation online more information take following test.

CBSE Biology Domestication and Improvement of Plants Test Online

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1. Haploids are more suitable for mutation studies than the diploids. This is because?

all mutations whether dominant or recessive are expressed in haploids

haploids are reproductively more stable than diploids

mutagens penetrate in haploids more effectively than is diploids

haploids are more abundant in nature than diploids

Question 1 of 29

2. The name of Norman Borlaug is associated with?

Green revolution

Yellow revolution

Blue revolution

White revolution

Question 2 of 29

3. One of the most important reason why wild plants should thrive is that these are good sources of?

genes for resistance to diseases and pests

highly nutritive animals feed

rare and highly sought after fruits of medical importance

unsaturated edible oils

Question 3 of 29

4. Three crops that contribute maximum to global food grain production are?

wheat, rice and barley

wheat, rice and maize

rice, maize and sorghum

wheat, maize and sorghum

Question 4 of 29

5. Which plant will loss its economic value if its fruits are produced by induced parthenocarpy?

Orange

Grape

Banana

Pomegranate

Question 5 of 29

6. Golden rice is a transgenic crop of the future with the following improved trait?

high vitamin-A content

insect resistance

high lysine (essential amino acid) content

high protein content

Question 6 of 29

7. Before the European invaders which vegetable was/were absent in India?

Potato and tomato

Simal mirch and brinjal

Maize and chichinda

Bitter ground

Question 7 of 29

8. Which one of the following is commonly used in transfer of foreign DNA into crop plants?

Trichoderma harzianum

Meloidogyne incognita

Penicillium expansum

Agrobacterium tumefaciens

Question 8 of 29

9. Transgenic plants are?

generated by introducing foreign DNA in to a cell and regenerating a plant from that cell

produced by a somatic embryo in artificial medium

produced after protoplast fusion in artificial medium

grown in artificial medium after hybridization in the field

Question 9 of 29

10. Yeast (Saccharomyces cerevisiae) is used in the industrial production of?

tetracycline

butanal

ethanol

citric acid

Question 10 of 29

11. The reason why vegetatively reproducing crop plants are best suited for maintaining hybrid vigour is that?

they have a longer life span

they can be easily propagated

they are more resistant to disease

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

Question 11 of 29

12. Parthenocarpic tomato fruits can be produced by?

treating the plants with low concentrations of gibberellic acid and auxins

removing androecium of flowers before pollen grains are released

raising the plants from vernalized seeds

treating the plants with phenyl mercuric acetate

Question 12 of 29

13. The alkaloid ajmalicine is obtained from?

Atropa

Palaver

Curium

Sarpgandha

Question 13 of 29

14. Which statement is correct about center of origin of plants?

none of the above

Climatic conditions more favorable

Frequency of dominant gene is more

More diversity in varieties

Question 14 of 29

15. Haploid plants are preferred over diploids for mutation study because in haploids?

dominant mutation express immediately

induction of mutations is easier

culturing is easier

recessive mutation express immediately

Question 15 of 29

16. India's wheat yield revolution in the 1960s was possible primarily due to?

mutations resulting in plant height reduction

quantitative trait mutations

increased chlorophyll content

hybrid seeds

Question 16 of 29

17. In crop improvement programme haploids are important because they?

are helpful in study of meiosis

grow better under adverse conditions

require one half of nutrients

form perfect homozygous

Question 17 of 29

18. Crop plants grown in monoculture are?

free from intraspecific competition

highly prone to pests

low in yield

characterized by poor root system

Question 18 of 29

19. Which one of the following has maximum genetic diversity in India?

Teak

Mango

Tea

Wheat

Question 19 of 29

20. Which of the following crops have been brought to India fro New world?

Cashewnut, potato, rubber

Tea, rubber, mango

Mango, tea

Coffee

Question 20 of 29

21. Somaclones are obtained by?

irradiation

tissue culture

plant breeding

genetic engineering

Question 21 of 29

22. Which one of the following pair of organisms are exotic species introduced in India?

Ficus relighiosa, Lantana camara

Nile perch, Ficus religiosa

Water hyacinth, Prosopis cinereria

Lnatana camara, Water hyacinth

Question 22 of 29

23. The new varieties of plants are produced by?

selection and introduction

mutation and selection

selection and hybridization

introduction and mutation

Question 23 of 29

24. Most of our crop plants are?

allopolyploid in origin

heterozygous in origin

autopolyploid in origin

mixed genotypic in origin

Question 24 of 29

25. Of the world's top five crops (in terms of annual production)?

four belong to Poaceae, one to Leguminosae

four belong to Poaceae, one to Solanaceae

all five belong to Poaceae

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

Question 25 of 29

26. Which one of the following pair is wrongly matched?

Yeast __ Ethanol

Streptomycetes __ Antibiotic

Coliforms __ Vinegar

Methanogens __ Gobar gas

Question 26 of 29

27. Haploid plant cultures are got from?

pollen grain

root up

buds

leaves

Question 27 of 29

28. Why is vivipary an undesirable character for annual crop plants?

It reduces the vigour of plant

The seeds exhibit long dormancy

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

It adversely affects the fertility of the plant

Question 28 of 29

29. Triticale the first man-made cereal crop has been obtained by crossing wheat with?

pearl miller

rye

sugarcane

barley

Question 29 of 29

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2021-01-17

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CBSE Biology Domestication and Improvement of Plants Test Online

CBSE Biology Domestication and Improvement of Plants Test Online

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