agriculture MCQs – Page 27

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 Review each marked answer and report any item that may be outdated or unclear.

1301. After self pollination of red flowered plants out of 40 plants of progeny were white flowered. this indicates that the plants are__________________?
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A. Homozygous

B. Heterozygous

C. Heterogeneous

D. Homogenous

1302. Gametophytic self incompatibility was first reported in___________________?
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A. Set aria sphacelata

B. Lena sativa

C. Scale cereals

D. Nicotine sandarac
1303. Pure line theory was developed by_______________?
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A. Mather (1951)

B. Thoday (1960)

C. Allard (1957)

D. Johannsen (1903)
1304. The value of regression and correlation is the same when the correlation between two variables is________________?
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A. Negative

B. Perfect

C. Imperfect

D. Positive

1305. Who discovered ribosomes__________________?
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A. Garner

B. Palade

C. Altmann

D. Cowdry

1306. Plants having monoecious flowers are found in____________________?
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A. Caster

B. Colocasia

C. All the above

D. Maize

1307. Drought is measured in terms of________________?
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A. Yield performance

B. Photosynthesis

C. Root length of seedings

D. All the above
1308. Blackeselee reported the first case of monoploid in__________________?
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A. Rye

B. Brassica

C. Oat

D. Datura
1309. The smallest unit of recombination in the chromosome is called___________________?
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A. Citron

B. Chromosome

C. Recon

D. Gene

1310. The new crop critical has been evolved by intervener hybridization between________________________?
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A. Wheat & Anglos

B. Rice & maize

C. Wheat & rice

D. Rye & Wheat
1311. Low magnitude of genotype x environmental interaction indicates__________________?
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A. Stability

B. High buffering capacity

C. Low buffering capacity

D. Adaptability

1312. The significance of difference among several means is tested with the help of____________________?
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A. Z-test

B. F-test

C. t-test

D. x-test

1313. The protein synthesizing system is associated with_____________________?
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A. Mitochondria

B. Ribosomes

C. Episodes

D. Microtubules

1314. Occurrence of cells in diploid organisms containing multiples of the 2n genomes is known as____________________?
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A. Amphidiploids

B. Aneupoidy

C. End polyploidy

D. Allopolyploid

1315. The variety of genes and genotypes found in a particular crop special are_____________________?
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A. Genetic erosion

B. Field gene banks

C. Gene sanctuaries

D. Genetic diversity
1316. Maximum mutants varieties are evolved in_________________?
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A. Rice

B. Maize

C. Wheat

D. Barley

1317. The term vertical resistance and horizontal resistance were first used by________________________?
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A. Correns (1900)

B. Van der plank (1963)

C. Hull (1945)

D. Karpechenko (1927)

1318. Increased flower size has made tetraploidy important for___________________?
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A. Pathologist

B. Horticulturist

C. Plant breeder

D. Agronomist

1319. Cuscuta is an object ional weed of_____________________?
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A. Sorghum

B. Berseem

C. Luceru

D. Cowpeas

1320. Mating between distantly related individuals is known as________________?
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A. Inbreeding

B. Amphimixis

C. Out breeding

D. All the above

1321. Which one is C3 crop plant__________________?
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A. Gram

B. Onion

C. all the above

D. Tomato

1322. Difference between mean phenotypic value of the progeny of selected plants and the parental population is known as__________________?
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A. Genetic advance

B. Heritability

C. Genetic gain

D. Coheritability

1323. Episodes may be factor in____________________?
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A. Incomplete dominance

B. Chromosomal inheritance

C. Dominance

D. Cytoplasm inheritance

1324. A useful process for determining whether an individual is homozygous or heterozygous is_____________________?
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A. Cross breeding

B. Inbreeding

C. Self fertilization

D. Back crossing
1325. International institute for Tropical Agriculture is located at______________________?
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A. Syria

B. Columbia

C. Mexico

D. Nigeria
1326. Rum is distilled from____________________?
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A. Unmalted cereals

B. Unrefined products of sugarcane

C. Unmalted potatoes

D. Fermented fruit juice

1327. Citification is not required for_____________________?
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A. Foundation seed

B. Certified seed

C. Nucleus seed

D. Breeder seed
1328. The term mitosis was coined by__________________?
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A. Rimpu (1890)

B. De Vilmorin (1856)

C. Flemming (1882)

D. Nilson (1900)

1329. In lucern, toxic substance is found in_____________________?
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A. Coumarin

B. Neurotoxin

C. All the above

D. Saponin
1330. In green vegetables, the limiting amino acids is__________________?
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A. Methionine

B. Arginine

C. Trytophan

D. Lysine

1331. The process of producing several indentical copies of a gene sequence referred to as__________________?
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A. Micro cloning

B. Gene sequencing

C. Gene cloning

D. Gene splicing

1332. As a result of linkage and crossingover _____________________?
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A. Chromatids become chromosomes

B. Chromosomes become half in number

C. Nuclear division come to close

D. Exchange of chromosomal material
1333. Red flower pea plant is crossed with the white flowered pea plant, F1 is red; with flower color is ______________________?
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A. Unexpressive

B. Non-genetic

C. Dominant

D. Recessive
1334. Who discovered nucleic acid________________?
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A. Miescher

B. Van Mohl

C. Schultz

D. Benda

1335. Single seed descent method was first suggested by_________________?
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A. Giber (1953)

B. Brim (1966)

C. Simmonds (1979)

D. Goulden (1939)
1336. A mutation which kills 50% of the individual that carry the mutation is known as_________________?
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A. Lethal mutation

B. Sub-vital mutation

C. Sub lethal mutation

D. Vital mutation

1337. Concept of generation means analysis was developed by_______________________?
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A. Jink (1950)

B. Kempthome (1957)

C. Griffing (1965)

D. Hayman (1958)
1338. Male sterility in flowering plants was first reported is__________________?
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A. Bateman (1952)

B. Stout (1917)

C. Koelreuter (1763)

D. Braw baker (1958)

1339. Mass pedigree method was developed by__________________?
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A. Harrington (1973)

B. Allard (91400

C. Vilomorin (1980)

D. Falconer (1960)

1340. DNA is genetic material was first discovered by____________________?
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A. Avery et al (1944)

B. Sressler (1968)

C. Crick (1953)

D. Attmann (1889)

1341. The digestive vacuole in the animal cell are____________________?
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A. Lysosomes

B. Ribosomes

C. Lysozymes

D. Dictysomes

1342. Drought tolerance is associated with ____________________?
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A. Deep root system

B. All of the above

C. Small waxy and thick leaves

D. Sunken, small and less stomata

1343. RELPs, RAPD are helpful in___________________?
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A. All the above

B. Identify new gene

C. Gene mapping

D. Gene sequencing

1344. Ribosomes are the centers of_____________________?
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A. Protein synthesis

B. Anaerobic respiration

C. Fat synthesis

D. Starch synthesis

1345. Seed germination in typhoin walermelon can successfully be obtained by____________________?
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A. Scarification

B. Seed cot removal

C. All the above

D. Seed risking

1346. Reciprocal recurrent selection is effective with___________________?
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A. Over dominance

B. Incomplete

C. All the above

D. Complete dominance

1347. The name Suicide bag is given to___________________?
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A. Centrosomes

B. Ribosomes

C. Lysosmes

D. Microsomes

1348. In pulses, limiting amino acids include__________________?
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A. Methionine

B. Threamine

C. Tryptophan

D. Lysine

1349. What is the function of Gorge bodies__________________?
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A. RNA synthesis

B. Segregation of the products of sunthesis

C. Protein synthesis

D. Photosynthesis

1350. Primitive cultivars which are selected and cultivated by farmers for many years are___________________?
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A. teriary gene pool

B. Land races

C. Modern cultivars

D. Obsolete cultivars