agriculture MCQs – Page 106

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 Review each marked answer and report any item that may be outdated or unclear.

5251. Global gene bank of sorghum is located at_______________________?
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A. ICARDA

B. CIP Peru

C. ICRISAT

D. None of the above

5252. Split gene was first reported in___________________?
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A. Drosoplulla

B. All the above

C. Cluckens

D. Pea

5253. Pollen sterility which is controlled by both cytoplasmic and nuclear genes is known as___________________?
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A. GMS

B. CMS

C. all the above

D. CGMS
5254. Prepotency increase with increase in_______________?
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A. All the above

B. Homogeneity

C. Homozygosity

D. Hetrozygosity

5255. Concept of combining ability as measure of gene action was first proposed by___________________?
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A. Sprague and Tatum (1942)

B. Mather (1956)

C. Cavalli (1952)

D. Wright (1951)

5256. Erucic acid is found is_____________________?
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A. Til

B. Soybean

C. Mustard

D. Safflower

5257. Homozygous population include_________________?
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A. Inbreed lines

B. Multi lines

C. Pure lines

D. All the above
5258. ICARDA is located at___________________?
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A. Columbia

B. Syria

C. Tamil Nadu

D. None of the above

5259. Herkogamy is found in___________________?
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A. Berseen

B. Barley

C. Lucrene

D. Alfalfa
5260. Self incompatibility which is controlled by single gene found in some species of__________________?
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A. All the above

B. Cruciferae

C. Solanaceae

D. Leguminosae

5261. Mass pedigree method was developed by__________________?
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A. Vilomorin (1980)

B. Allard (91400

C. Falconer (1960)

D. Harrington (1973)
5262. Concept of triple test cross of analysis was developed by____________________?
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A. Anderson (1957)

B. Mather (1949)

C. Kearsey and Jinks (1960)

D. Fisher (1960)

5263. Global gene bank of Potato is located at_____________________?
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A. CIP Peru

B. Florida

C. None of the above

D. Columbia

5264. Who coined the term genetic flexibility and phenotypic flexibility___________________?
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A. Thoday (1953)

B. Muller (1950)

C. Salisbury (1940)

D. Hardy (1908)

5265. Somatic hybrid Pomato was produced by fusion between potato and tomato by__________________?
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A. Melchers et al (1978)

B. Sam Norum (1976)

C. Guha and Maheshwari (1974)

D. Glebe and Hoffmann (1979)

5266. Allogamy is the common form of________________________?
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A. Syn breeding

B. Out breeding

C. All the above

D. Inbreeding

5267. In allogamous species, a true breeding line obtained by continuous inbreeding is__________________?
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A. Top cross

B. Poly cross

C. Hybrid

D. Inbred
5268. Allogamy leads to___________________?
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A. none of the above

B. Homozy gosity

C. Heterozy gosity

D. Segregation

5269. Nutritional quality breeding deals with genetic improvement in__________________?
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A. All the above

B. Protein

C. Oil

D. Vitamin

5270. RELPs, RAPD are helpful in________________?
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A. Identify new genes

B. Gene mapping

C. All the above

D. Gene sequencing

5271. High values of genetic advance are indicative of____________________?
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A. Additive gene action

B. non-additive gene action

C. Partial dominance gene action

D. Dominance gene action

5272. A healthy plant not selling seed may be due to____________________?
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A. Self incompatibility

B. Female sterility

C. All the above

D. Male sterility
5273. In sunflower, production of foundation seed requires as isolation___________________?
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A. 800 meters

B. 400 meters

C. 100 meters

D. 200 meters

5274. A heterogeneous population include_______________?
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A. Composites

B. Multi lines

C. All the above

D. Synthetic

5275. Edible part of orange is__________________?
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A. Unexcelled endocarp hair

B. Multicelled endocarpic hair

C. Unicelled placenta hairs

D. Multicelled placental hairs

5276. The first ever inter generic crossed has been successfully performed between bamboo and sugarcane by_______________________?
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A. T.S. Verma

B. R.S. Paroda

C. R.B. Singh

D. T.S. Venkatraman
5277. Shull and East (1908) proposed over dominance hypothesis of hetrosis in_________________?
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A. None of the above

B. Maize

C. wheat

D. Barley

5278. The experimental design which controls fertility variation in two directions in known as_________________?
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A. RBD

B. LSD

C. AD

D. SPD

5279. Various crosses made using a common tester are__________________?
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A. Top crosses

B. Biparental cross

C. Test cross

D. Double cross

5280. Analysis of covanance permits estimation of_____________________?
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A. All the above

B. Genotypic convanance

C. Environmental covanance

D. Phenotypic covanance

5281. Maximum mutants varieties are evolved in_________________?
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A. Wheat

B. Rice

C. Maize

D. Barley

5282. The concept of disruptive was given by____________________?
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A. None of the above

B. Morgan

C. Shull and East

D. Mather
5283. In wheat, Hessian fly pest is genetically controlled by__________________?
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A. 1D

B. 2D

C. Cytoplasm

D. 5D + 5d
5284. Fertilization in a flower occurs within the____________________?
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A. Ovule

B. Anther

C. Style

D. Pollen tube

5285. Haploid plants have been produced by another culture in tomato by_________________?
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A. Tyagi and Prasad (1965)

B. Singh (1960)

C. Greshof and Doy (1972)

D. Mehta and Upadhya (1960)

5286. Biometrics for the study of quantitative genetics was provided by ___________________?
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A. Mather

B. Fisher

C. Falconer

D. Hayman

5287. Mutation was first discovered by________________?
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A. Wright (1791)

B. deVries (1900)

C. Morgan (1910)

D. Stadler (1928)

5288. System of mating were given by_________________?
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A. Sewell Wright (1921)

B. Bruce and Keebel (1908)

C. Shall and East (1920)

D. Mather (1953)

5289. Jumping gene was first discovered in______________________?
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A. Oenothera

B. Maize

C. Barley

D. Sorghum

5290. Concept of disruptive selection was first developed by__________________?
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A. Grafius (1965)

B. Mather (9153)

C. Falconer (1960)

D. Thoday (1960)

5291. The term self incompatibility was coined by________________?
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A. None of the above

B. East (1940)

C. Gerstel (1950)

D. Koelreuter (1763)

5292. Artificial vegetative reproduction is done by_________________?
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A. All the above

B. Grafting

C. Layering

D. Budding

5293. Neurotoxin is found in___________________?
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A. Sorghum

B. Lucem

C. Berseem

D. Pearl millet

5294. Development of embryo from egg cell without fertilization is known as___________________?
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A. Apogamy

B. Autogamy

C. Apospory

D. Parthenogenesis
5295. Plant breeder right are operating in____________________?
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A. 3 meters

B. 50 meters

C. Geneva

D. 200 meters
5296. Increased flower size has made tetraploidy important for___________________?
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A. Agronomist

B. Horticulturist

C. Plant breeder

D. Pathologist

5297. Plants having monoecious flowers are found in____________________?
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A. All the above

B. Caster

C. Colocasia

D. Maize

5298. The term mitosis was coined by________________?
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A. De Vries and correns (1908)

B. Non of these

C. Flemming (1882)

D. Bruce and Keeble (1908)

5299. The process of producing several indentical copies of a gene sequence referred to as__________________?
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A. Micro cloning

B. Gene splicing

C. Gene cloning

D. Gene sequencing

5300. The term poly genes was coined by___________________?
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A. Hazel (1943)

B. Mather (1943)

C. Griffing (1956)

D. Yates (1947)