1451. How much grams of vegetables and fruits are recommended for a balanced diet per day by WHO__________________?
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A. 450 grams

B. 150 grams

C. 40 grams

D. 300 grams

1452. A rearrangement of a group of genes in a chromosome in such a way that their order in the chromosomes is reversed is known as _____________________?
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A. Conversion

B. Realignment

C. Inversion

D. Recessive gene
1453. The metric unit of light is___________________?
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A. Lux

B. Km

C. Noticlemiles

D. Lumen

1454. Study of plant species in relation of its environmental history ___________________?
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A. Histology

B. Phylogemy

C. Ontogeny

D. None of the above

1455. When a wheat variety with red kernels (homozygous for two non allelic and independent dominant genes) is crossed with white kenneled wheat (homozygous for two recessive non allelic independent genes), the phenotypic ratio in the F2 generation would be________________?
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A. 9:3:3:1

B. 1:4:6:4:1

C. 9:07

D. 9:9:9:3:3:3:1

1456. A cross of hybrid with one of its recessive parent is termed____________________?
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A. Test cross

B. Backcross

C. Hybridization

D. Trihybrid

1457. From which part of the coconut tem coir is obtained_____________________/
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A. Leaf

B. Endosperm

C. Inflorescence

D. Per carp of fruit
1458. First intergeneric hybrid between radish and cabbage was made by__________________?
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A. Karechenko (1927)

B. Jones (1917)

C. Muller (1927)

D. Fray (1966)

1459. In potato food is stored in__________________?
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A. Flowers

B. Leaves

C. Shoot

D. Root

1460. capsicum is a rich source of___________________?
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A. Vitamin C

B. None of the above

C. Vitamin A

D. Vitamin D

1461. Growing of vegetables for the consumption of local market and large center is_________________?
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A. Market gardening

B. Olericulture

C. Truck gardening

D. Home gardening

1462. A normal plant suddenly started reproducing parthengentically. the number of chromosomes of the second generation compared to the parent plant will be____________________?
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A. One fourth

B. One half

C. Same

D. Double

1463. A science which deals with classification of plants is called___________________?
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A. Histology

B. Ecology

C. Morphology

D. Taxonomy
1464. Guava, tomato, ber and melons are rich in__________________?
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A. Vitamin D

B. Vitamin C

C. Vitamin A

D. Vitamin B

1465. Organic evolution through large discontinuous variations was propound by__________________?
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A. Huge and Vnes

B. Mendel

C. Darwin

D. Lamak

1466. A technique which involves separating vegetative parts like rhizome offset, corns and sucker from the parent plant is called_________________?
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A. Stool layering

B. Root cutting

C. Mound layering

D. Division
1467. In bhindi, production of foundation seed needs and isolation distance_________________?
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A. 50 meters

B. 100 meters

C. 200 meters

D. 3 meters

1468. Synopsis occur in___________________?
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A. Meiosis

B. Amitosis

C. Mitosis

D. all the above

1469. Banana belongs to type of fruit where the edible portion is ___________________?
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A. Mesocarp

B. Sycoms

C. Berry

D. Drup

1470. Degeneration and death of aerial plant parts is called___________________?
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A. Senescence

B. Partial Senescence

C. Maturity

D. Both a & b

1471. If a haploid chromosome number of a gymnosperm is 12 the chromosome in its endosperm will be__________________?
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A. 36

B. 12

C. 6

D. 24

1472. Phoenix dactylifera belongs to the family___________________?
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A. Palmeae

B. Rutaceae

C. Pomaceae

D. Anacardiaceae

1473. Ethylene has horticulture uses such as___________________?
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A. Initiating flowers

B. Changing the green color of fruits

C. All the above

D. Inducing fruit maturity

1474. The most popular and common method of laying out orchard on flat ground is_________________?
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A. Square system

B. Triangular system

C. Quincunx system

D. Rectangular system

1475. Mango propagation is more successful by_______________________?
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A. Shield budding

B. Grafting

C. T-budding

D. Cutting

1476. Mutation breeding is mostly used in____________________?
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A. Vegetative propagated crops

B. Cross pollinated crops

C. Self pollinated crops

D. Often cross pollinated crops

1477. Which one of the following horticultural plants is well known for its cooling effect _______________________?
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A. Sweet lime

B. All the above

C. Falsa

D. Jaman

1478. Plants which shed their leaves during winter are___________________?
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A. annuals

B. deciduous

C. Evergreen

D. Monoecious

1479. Self incompatibility is used for hybrid seed production in______________________?
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A. Maize

B. Tomato

C. Cabbage

D. Rice

1480. Heat requirement to change 1 Kg of a substance at its boiling point from the liquid to vapour is called__________________?
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A. Heat energy

B. Heat of vaporization

C. Heat of fusion

D. Mechanical heat

1481. Fleshy fruits developed from the ovary wall with out stony layer are known as____________________?
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A. Pome

B. Drupe

C. None of the above

D. Berry
1482. A controlled oxidation process by which all organisms ultimately obtain the energy stored in organic compound is known as_______________?
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A. Oxidation

B. Transportation

C. Respiration

D. Both a & b

1483. The process of transfer and deletion of several gene is_____________________?
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A. Chromosomal mutation

B. Monoploldy

C. Synapsis

D. Gene mutation

1484. Commercial production of fruits is known as_____________________?
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A. Olericulture

B. Pomology

C. Orchading

D. Horticulture

1485. Nitrogen requirement for citrus plant per year is___________________?
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A. 1 Kg

B. 2Kg

C. 4Kg

D. 1-1.5Kg

1486. Poncirus sweet orange is the hybrid cross of __________________?
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A. Tangelos

B. Limequats

C. Citranges

D. All the above

1487. Which part of cell is important for and synthesis protoplasm ______________________?
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A. Chromosomes

B. Nucleus

C. Chloroplast

D. Mitochondria

1488. Nobel prize for the discovery of operon model was awarded to__________________?
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A. Watson and Crick (1953)

B. Jacob and monod (1965)

C. Crick (1966)

D. Briuen and Davidson (1959)

1489. Shrubs and flowering trees are propagated through_________________?
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A. Hard wood cutting

B. Soft wood cutting

C. Semi hard wood cutting

D. Semi soft wood cutting

1490. Many groups of insects have developed resistance to DDT and other insecticides as a result of____________________?
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A. Gene mutation

B. Polyploidy

C. Crossing over

D. Segregation

1491. Removal any terminal part of the plant is called___________________?
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A. Heading back

B. Thinning out

C. Pruning

D. Training

1492. Who coin the term genetic load _____________?
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A. Ford (1940)

B. Satisbury (1940)

C. Hardy (1908)

D. Muller (1950)
1493. Ornamental Horticulture is the combination of____________________?
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A. Viticulture and landscape

B. Floriculture and landscape

C. None of these

D. Pomology and floriculture

1494. An auxotroph is_________________?
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A. A mutant organism which has lost its ability to synthesize one or more essential nutrients

B. A plan that is able to synthesize its own carbohydrates

C. An organism that depends on other organism for meting its nutrient requirements

D. non of these

1495. Skin diseases, night blindness and kidney stone are caused by the deficiency of__________________?
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A. Vitamin B

B. Vitamin D

C. Vitamin A

D. Protein

1496. Anaerobic respiration is known as___________________?
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A. Ripening

B. Transportation

C. Sterilization

D. Fermentation
1497. A child is born with an extra chromosome in each of it cells, the reason is___________________?
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A. Crossing over

B. Segregation

C. Hybridization

D. Non-disjunction
1498. Cataracts, a form of impaired vision in which the lens of eye become opaque in old age is caused due to the deficiency of________________?
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A. Ascorbic acid

B. Tannins

C. None of the above

D. Folic acid
1499. Carbohydrates synthesis is carried out by ___________________?
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A. Golgi bodies

B. Ribosomes

C. Plastid

D. Mitochondria

1500. A process by which a piece of scion is attached to a root stock in a way that eabium of both scion and root stock came in firm contact, resulting is a new tissue is called_________________?
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A. Rooting

B. Budding

C. Ghooti

D. Grafting