agriculture MCQs – Page 275

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 Review each marked answer and report any item that may be outdated or unclear.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

5481. Cytoplasm fills of the cavity of a cell when if is young. But in nature cells, the cytoplasm________________?
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A. Disappears completely

B. Becomes vacuolated

C. Contracts

D. Disintegrates partially

5482. The term vertical resistance and horizontal resistance were first used by________________________?
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A. Van der plank (1963)

B. Karpechenko (1927)

C. Hull (1945)

D. Correns (1900)

5483. Organism arise from existing forms by genetic variations is called_________________?
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A. Hybridization

B. Genetics

C. Mutation

D. Genetics

5484. Triticuin aestivuin is_________________?
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A. Hexaploid

B. Oetaploid

C. Teuaplioid

D. Triploid

5485. In oat an site-specific cross between Ivena sativa and A busantus_____________________?
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A. Partially fertile

B. Incompatible

C. Fully fertile

D. Sterile

5486. The first attempt to show linkage in plants were done in____________________?
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A. Another Lamarckian

B. Zeal Mays

C. Lathers odorous

D. Possum sativa

5487. Gene responsible for the synthesis of repressor is called__________________?
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A. Operator gene

B. Regulator gene

C. Structural gene

D. Promotor gene

5488. Liposomes originated from____________________?
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A. Leucoplasts

B. Mitochondria

C. Ribosomes

D. Plastids

5489. Which part of cell is important for and synthesis protoplasm ______________________?
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A. Mitochondria

B. Chloroplast

C. Nucleus

D. Chromosomes

5490. An organism or cell having a chromosome number that is higher than the exact nultiple of the basic number is known as__________________?
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A. Allopolyploid

B. Hypoploid

C. Hyperploid

D. Autopolyploid

5491. The most recent evolved plant group is ____________________?
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A. grasses

B. Mosses

C. Gymnosperm

D. Confers

5492. The cellular structure which always disappears during mitosis is___________________?
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A. Plastids

B. Nuclear and membrane

C. Protoplasm

D. Membrane

5493. When two genes are situated very close together in a chromosome_____________________?
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A. Hardly any cross over are detected

B. Only double cross over can take place between them

C. No crossing ever can ever takes place between them

D. The percentage of crossing over between them is very

5494. If a heterozygous tall plant is crossed with a homozygous dwarf plant the proportion of dwarf progerry will be__________________?
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A. 50%

B. 25%

C. 75%

D. 100%

5495. The first organisms to appear on the earth were more like plants than animals because__________________?
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A. Plants can manufacture their own food material

B. None of the above

C. Plants are similar in structure

D. There are more plants than animals

5496. The term cell was introduced in 1665 by__________________?
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A. Maligned

B. Schumann

C. Hook

D. Schneider

5497. Dee-Geo-Woogen is the source of dwarfing gene in___________________?
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A. Maize

B. Rice

C. Wheat

D. Sorghum

5498. The small unit of DNA capable of undergoing crossing over and recommbination is________________?
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A. Muton

B. Cistron

C. Recon

D. Complan

5499. Which one of the following is not found in DNA__________________?
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A. Uracil

B. Guanine

C. Thymine

D. Cystine

5500. First intergeneric hybrid between radish and cabbage was made by__________________?
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A. Karechenko (1927)

B. Jones (1917)

C. Fray (1966)

D. Muller (1927)

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