agriculture MCQs – Page 280

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 Review each marked answer and report any item that may be outdated or unclear.

agriculture Mcqs

1. soil science 2. agronomy 3. entomology 4. water management 5. horticulture 6. agricultural economics 7. plant pathology 8. food technology 9. animal husbandry 10. plant breeding and genetics

5581. A species or type of a plant derived from doubling the chromosome of the F1 hybrid of two known species is known as__________________?
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A. Autopolyploid

B. Amphidiploid

C. Autodiploid

D. Hexaploid

5582. Argemone mexicana is an objectional wed of__________________?
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A. Barley

B. Oat

C. Rapseed/mustard

D. Tomato

5583. Drought is measured in terms of________________?
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A. Yield performance

B. All the above

C. Photosynthesis

D. Root length of seedings

5584. The ratio of treatment variance to error variance is known as______________________?
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A. F-value

B. Correction factor

C. Critical difference

D. t-value

5585. Organic evolution through large discontinuous variations was propound by__________________?
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A. Darwin

B. Huge and Vnes

C. Mendel

D. Lamak

5586. A genetic element which can exist in more than one of the two alternative forms is known as__________________?
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A. Episome

B. Mecrosome

C. Peroxisome

D. Disome

5587. Which statement is true___________________?
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A. Etiolation is not a reversible process

B. Etiolation is physiological while albinism is genitival

C. Etiolation and albinism are synonyms

D. Etiolation is genetically while albinism is physiological

5588. An auxotroph is_________________?
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A. A plan that is able to synthesize its own carbohydrates

B. non of these

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

D. A mutant organism which has lost its ability to synthesize one or more essential nutrients

5589. Stadler, first used X-rays for induction of mutation in_________________?
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A. Wheat

B. Maize

C. Barley

D. Oat

5590. Theory of mutation was given by___________________?
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A. Mendel

B. De Vries

C. Watson

D. Tschermak

5591. Who discovered nucleic acid________________?
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A. Van Mohl

B. Schultz

C. Miescher

D. Benda

5592. The role of nucleus in regulating the morphology of the plant was discovered in___________________?
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A. Macrospore

B. Maize

C. Acetabularia

D. pea

5593. If the offspring of F, (blue) is crossed with white male parent the result will be______________________?
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A. All white

B. All blue

C. All black

D. Half blue and half white

5594. Which one of the following is fruit____________________?
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A. Cauliflower

B. Ginger

C. Potato

D. Brinjal

5595. A mutation is a change in_________________?
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A. Chromosome structure

B. RNA

C. DNA

D. Chromosome number

5596. Self-incompatibility is controlled by_________?
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A. Multiple alleles

B. Polygenes

C. Plasmogenes

D. Both B and C

5597. In line x tester cross mating is done between:
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A. Males & females

B. Among males

C. All of these

D. Among females

5598. In spermatogenesis, each spermatogonium increases in size to form a __________?
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A. Spermatid

B. Spermatozoa

C. Spermatocyte

D. Primary oocyte

5599. In spermatogenesis, each spermatogonium increases in size to form a __________?
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A. Spermatozoa

B. Spermatocyte

C. Primary oocyte

D. Spermatid

5600. Male sterility is absence of_________?
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A. Sterile anther

B. Sterile pollen

C. All of these

D. Functional pollen

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