agriculture MCQs – Page 266

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 Review each marked answer and report any item that may be outdated or unclear.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

5301. Gradual reduction on genetic variability due to elimination of various () is called_______________________?
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A. Land races

B. Genetic diversity

C. Centers of diversity

D. Genetic erosion

5302. Allogamy is promoted by____________________?
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A. Male sterility

B. Dichiny

C. Herkogamy

D. All the above

5303. A gene which exhibits higher mutation rate than others is referred as___________________?
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A. Mutator gene

B. Antimutalor gene

C. Mutable gene

D. Hot spot

5304. Red flower pea plant is crossed with the white flowered pea plant, F1 is red; with flower color is ______________________?
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A. Recessive

B. Unexpressive

C. Dominant

D. Non-genetic

5305. Heat, cold and frost resistance ideotype have been developed in_____________________?
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A. None of the above

B. Cereals

C. Millet

D. Pulses

5306. Rum is distilled from____________________?
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A. Unmalted cereals

B. Unmalted potatoes

C. Unrefined products of sugarcane

D. Fermented fruit juice

5307. When pollination and fertilization occur in unopened flower bud it is known as__________________?
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A. Hamogamy

B. All the above

C. Chasmogamy

D. Cleistogamy

5308. The term mitosis was coined by__________________?
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A. Rimpu (1890)

B. Nilson (1900)

C. De Vilmorin (1856)

D. Flemming (1882)

5309. Genetic selection was proposed by_________________?
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A. Hull (1945)

B. Stadler (1944)

C. Richy (1927)

D. East (1920)

5310. Concept of generation means analysis was developed by_______________________?
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A. Kempthome (1957)

B. Hayman (1958)

C. Griffing (1965)

D. Jink (1950)

5311. In green vegetables, the limiting amino acids is__________________?
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A. Lysine

B. Arginine

C. Methionine

D. Trytophan

5312. Primitive cultivars which are selected and cultivated by farmers for many years are___________________?
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A. Land races

B. Modern cultivars

C. Obsolete cultivars

D. teriary gene pool

5313. Seeds which dried at low moisture content and stored at low temperature without losing their viability are__________________?
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A. Recalcitrant seeds

B. Orthodox seeds

C. Certified seeds

D. Active seeds

5314. Concept of ideotype was coined by__________________?
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A. Oat

B. Rice

C. Sorghum

D. Wheat

5315. In forage, crops, ideal plant type consists of ______________________?
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A. Late resistance to disease

B. Dwarf, late green

C. Tall, leafy, high leaf/stem ratio

D. Dwarf stature

5316. Plasmids are discovered by___________________?
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A. Beadle & Tatum

B. Watson & Crick

C. None of the above

D. Iscki & Sakai

5317. Concept of path coefficient analysis was given by_________________?
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A. Smith (1936)

B. Wright (1921)

C. Mather (1949)

D. Fisher (1918)

5318. Gamatophytic system of self incompatibility was first discovered by____________________?
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A. Bresbaker (1958)

B. East and Mangelsdref (1925)

C. Frankel (1977)

D. Hughes and Babceek

5319. Self pollination is associated with__________________?
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A. Herkogamy

B. Dichogamy

C. Chasmogamy

D. Homogamy

5320. Difference between mean phenotypic value of the progeny of selected plants and the parental population is known as__________________?
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A. Coheritability

B. Genetic advance

C. Genetic gain

D. Heritability

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