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

Show paginator

Hide paginator

CBSE

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

quantitative trait mutations

increased chlorophyll content

hybrid seeds

mutations resulting in plant height reduction

Question 1 of 29

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

Nile perch, Ficus religiosa

Lnatana camara, Water hyacinth

Ficus relighiosa, Lantana camara

Water hyacinth, Prosopis cinereria

Question 2 of 29

3. Haploid plant cultures are got from?

pollen grain

buds

root up

leaves

Question 3 of 29

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

Tea, rubber, mango

Coffee

Mango, tea

Cashewnut, potato, rubber

Question 4 of 29

5. The name of Norman Borlaug is associated with?

White revolution

Yellow revolution

Green revolution

Blue revolution

Question 5 of 29

6. Somaclones are obtained by?

tissue culture

genetic engineering

plant breeding

irradiation

Question 6 of 29

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

Streptomycetes __ Antibiotic

Coliforms __ Vinegar

Methanogens __ Gobar gas

Yeast __ Ethanol

Question 7 of 29

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

citric acid

ethanol

tetracycline

butanal

Question 8 of 29

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

grow better under adverse conditions

are helpful in study of meiosis

require one half of nutrients

form perfect homozygous

Question 9 of 29

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

rare and highly sought after fruits of medical importance

unsaturated edible oils

highly nutritive animals feed

genes for resistance to diseases and pests

Question 10 of 29

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

sugarcane

barley

rye

pearl miller

Question 11 of 29

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

induction of mutations is easier

recessive mutation express immediately

dominant mutation express immediately

culturing is easier

Question 12 of 29

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

four belong to Poaceae, one to Leguminosae

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

four belong to Poaceae, one to Solanaceae

all five belong to Poaceae

Question 13 of 29

14. Parthenocarpic tomato fruits can be produced by?

treating the plants with low concentrations of gibberellic acid and auxins

treating the plants with phenyl mercuric acetate

raising the plants from vernalized seeds

removing androecium of flowers before pollen grains are released

Question 14 of 29

15. 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

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

they are more resistant to disease

Question 15 of 29

16. Crop plants grown in monoculture are?

low in yield

characterized by poor root system

highly prone to pests

free from intraspecific competition

Question 16 of 29

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

insect resistance

high vitamin-A content

high protein content

high lysine (essential amino acid) content

Question 17 of 29

18. Transgenic plants are?

grown in artificial medium after hybridization in the field

produced by a somatic embryo in artificial medium

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

produced after protoplast fusion in artificial medium

Question 18 of 29

19. The new varieties of plants are produced by?

introduction and mutation

selection and hybridization

selection and introduction

mutation and selection

Question 19 of 29

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

wheat, rice and maize

rice, maize and sorghum

wheat, maize and sorghum

wheat, rice and barley

Question 20 of 29

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

Tea

Wheat

Teak

Mango

Question 21 of 29

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

none of the above

More diversity in varieties

Climatic conditions more favorable

Frequency of dominant gene is more

Question 22 of 29

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

The seeds exhibit long dormancy

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

It reduces the vigour of plant

It adversely affects the fertility of the plant

Question 23 of 29

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

mutagens penetrate in haploids more effectively than is diploids

haploids are more abundant in nature than diploids

haploids are reproductively more stable than diploids

all mutations whether dominant or recessive are expressed in haploids

Question 24 of 29

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

Potato and tomato

Maize and chichinda

Simal mirch and brinjal

Bitter ground

Question 25 of 29

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

Orange

Grape

Banana

Pomegranate

Question 26 of 29

27. The alkaloid ajmalicine is obtained from?

Palaver

Curium

Atropa

Sarpgandha

Question 27 of 29

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

Penicillium expansum

Meloidogyne incognita

Agrobacterium tumefaciens

Trichoderma harzianum

Question 28 of 29

29. Most of our crop plants are?

mixed genotypic in origin

autopolyploid in origin

heterozygous in origin

allopolyploid in origin

Question 29 of 29

Related Post

CBSE English Term 1 12th Class Answer Key 2023 Download…
CBSE 10th class Results 2023 Online Check Roll no Wise
CBSE Class 12th Term 1 Result 2023 Check Online Date and…
CBSE Answer Key Class 10th Home Science 2023 Pdf Answer…
RRB Railway recruitment 2023 Online Apply For Loco Pilot &…
UPTET Exams 2023 Test Preparation Online Practice Mock Test

Test By Subject	CBSE
Test By Topics	Domestication and Improvement of Plants

Have any Problem or Error please mention in below comments section.

2021-01-17

Test Advisor

CBSE Biology Domestication and Improvement of Plants Test Online

CBSE Biology Domestication and Improvement of Plants Test Online

CBSE

Leave a Reply Cancel reply