agriculture MCQs – Page 80

Practise multiple-choice questions from agriculture for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

1581. The Potato is___________________?
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A. Rhizome

B. Sucker

C. Tuber

D. Fruit

1582. The reason why mutations which are harmful do not eliminated from gene pool is that___________________?
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A. They are recessive and carried by heterozygous individuals

B. Making possible reproduction in all types of environments

C. Genetic drift occurs because of a small population in to offsprings

D. They have future survival value

1583. Commercial growth inhibitors include__________________?
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A. Daminozide

B. All the above

C. Cycocel

D. Chlormequat

1584. Which one is C4 crop plant_____________________?
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A. Sugarcane

B. all the above

C. Sorghum

D. Maize

1585. Development of distorted swollen leaves which become inverted translucent and eventually necrotic is known as_________________?
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A. Death of plant

B. Vitrification

C. Bacterial contamination

D. Mosaicism

1586. Evolution proceed on account of____________________?
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A. Conversion pf organism to change of environment

B. Adaptations through genervation

C. Fossils

D. Struggle for existence

1587. A propagation technique in which instead of wrapping the notched portion is burried in the ground is called________________?
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A. Air layering

B. Ghooti

C. Ground layering

D. Layering

1588. Tender crop cannot tolerate a minimum temperature of ___________________?
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A. 0C

B. 2C

C. 1C

D. -1C

1589. A branch of Horticulture dealing with the production of fruits and their distribution is called_______________?
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A. Olericulture

B. Sericulture

C. Citricultire

D. Pomology
1590. Lettuce is____________?
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A. Leaf

B. Tuber

C. Fruit

D. Fruit

1591. Two allelie genes are located on_______________________?
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A. Two non homologous chromosomes

B. Same chromosomes

C. Any two chromosomes with one each

D. Two homologous chromosomes
1592. The role of nucleus in regulating the morphology of the plant was discovered in___________________?
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A. Acetabularia

B. Maize

C. pea

D. Macrospore

1593. The offspring of a cross between twp individuals differing in at least one set of characters is called__________________?
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A. Mutant

B. Variant

C. Polyploidy

D. Hybrid
1594. The mechanism ensuring genetic continuity in mitosis is____________________?
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A. Formation of two daughter cells with identical DNA

B. Segregation of maternal and paternal characters

C. Crossing over of the genes

D. Halving of chromosome nuriber between two daughter cells

1595. The recommended ratio of male the recommended of male rows to female rows in hybrid bajra production is_________________?
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A. 4 to 8

B. 3 to 6

C. 1 to 2

D. 2 to 4
1596. When an albino plant of maize (female) is crossed with normal green plant (male) all plants in the progeny are albino because___________________?
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A. Crossing over results in structural changes in green plastids

B. Albinism is dominant over green characters

C. Green plastids of male parent become nitrated

D. Plastids are inherited through maternal parents
1597. A form of controlled atmosphere storage in which the produce is stored in a partial vacuum is called_________________?
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A. Ca storage

B. Hypo baric storage

C. Gas storage

D. Modified storage

1598. Genus of citrus is____________________?
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A. Fortunal

B. All the above

C. Poncirus

D. Citrus

1599. Maturation of stamens and pistils at different times in the same flower is called___________________?
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A. Heterospory

B. Heterostyle

C. Dichogamy

D. Dichotamy

1600. Small new plants which grow out from the parent and can be separated as independent plant is called_____________________?
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A. Seeding

B. Suckers

C. Division

D. Offset