agriculture MCQs – Page 270

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 Review each marked answer and report any item that may be outdated or unclear.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

5381. How many mitouc divisions will take place to produce 512 cells from a single parent cell_________________?
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A. 9

B. 511

C. 256

D. 158

5382. 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

5383. Strands of DNA are bounded by___________________?
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A. Icygen

B. Carbon

C. Hybrogen

D. Nitrogen

5384. Who discovered mitochondria__________________?
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A. Altmann

B. Palade

C. Cowdry

D. Garner

5385. Breeder seed is the progeny of__________________?
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A. Registered seed

B. Cenified seed

C. Foundation

D. Nucleus seed

5386. The term gene was coined by__________________?
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A. Punned

B. Darlington

C. Johnnsen

D. Batson

5387. If a plant heterozygous for tallness is selfed, f2 feneration has both tall and dwarf plants. this proves the principle of__________________?
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A. Independent assortment

B. Dominance

C. Incomplete dominance

D. Segregation

5388. Epitasis implies_____________________?
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A. One gene pair independently controls a phenotype

B. Many gene together control a parucular phenotype

C. One gene pair enhances phenotype expression of another gene pair

D. One pair of gene can completely mask the expression of another gene pair

5389. In a monohybrid cross, 2 heterozygous individuals were crossed, phenotypic ratio came to be (2:1), it is due to__________________?
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A. Dominant lethal genes in homozygous individuals

B. Dominant lethal genes in heterozygous individuals

C. None of the above

D. Dominant epistasis

5390. Synopsis occur in___________________?
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A. Mitosis

B. Amitosis

C. all the above

D. Meiosis

5391. The mechanism ensuring genetic continuity in mitosis is____________________?
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A. Halving of chromosome nuriber between two daughter cells

B. Segregation of maternal and paternal characters

C. Crossing over of the genes

D. Formation of two daughter cells with identical DNA

5392. Presence of slight differences in identical twins support the hypothesis that___________________?
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A. Dominance may be incomplete

B. Single gene may produce multiple effects

C. Genetic trails are influence by many genes

D. The environment effects the expression of genetic character

5393. Which one of the following does not contain both DNA and RNA__________________?
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A. Algae

B. Bacterium

C. Fungus

D. Virus

5394. Electron microscope was invented by _________________?
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A. Robert Hook

B. Schwaan

C. Sigmund

D. Knoll and Risks

5395. Male sterility in flowering plant was first reported by___________________?
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A. Gerstel (1900)

B. Koelreuter (1763)

C. Brewbaker (1810)

D. Stout (1917)

5396. The nucleic acids comprise of_________________?
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A. DNA & RNA

B. RNA

C. DNQA and protein

D. DNA

5397. In random mating population gene frequencies remain constant generation after generation in the absence of__________________?
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A. Random drift

B. Selection

C. Mutation

D. Migration

5398. which of the following probably occur when a diploid cell undergoes normal meiotic division________________?
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A. All dominant genes will segregate together into daughter cells

B. All linkage group will be disrupted

C. All homologous chromosome pairs will separate

D. All daughter cells will have different homologous chromosome pairs

5399. The suppression of the action of a gene or genes by a gene or genes not allelomorphic to these suppressed is known as __________________?
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A. Dominance

B. Co dominance

C. Episode

D. Epistasis

5400. A transonic individual has chromosome number____________________?
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A. 2 n-1

B. 2 n+1

C. 2 n+3

D. 2 n+2

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