1351. Law of parallele variation was given by___________________?
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A. Vavilov

B. Jacob

C. None of the above

D. Wilkins

1352. Allogamy is promoted by____________________?
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A. Herkogamy

B. All the above

C. Dichiny

D. Male sterility

1353. Fertilization in a flower occurs within the____________________?
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A. Anther

B. Style

C. Pollen tube

D. Ovule
1354. Plasmids are discovered by___________________?
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A. Watson & Crick

B. None of the above

C. Beadle & Tatum

D. Iscki & Sakai
1355. Ratio of genotypic covariance to the phenotypic covariance is____________________?
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A. Heritability (b.s)

B. Co-heritability

C. Genetic advance

D. Genetic gain

1356. The most effective method for the transfer of oligogenic characters________________?
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A. Disruptive

B. Pedigree

C. Bulk

D. Backcross
1357. Gene responsible for the synthesis of repressor is called__________________?
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A. Operator gene

B. Structural gene

C. Regulator gene

D. Promotor gene

1358. Plant breeder right are operating in____________________?
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A. 200 meters

B. 3 meters

C. Geneva

D. 50 meters

1359. Amount of DNA is the diploid cells____________________?
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A. None of the above

B. Constant for particular organism

C. Varies with the age

D. Coustant for all organismes
1360. Analysis of covanance permits estimation of_____________________?
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A. All the above

B. Phenotypic covanance

C. Genotypic convanance

D. Environmental covanance

1361. The outer most part of plant cell is____________________?
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A. Plasma membrane

B. Nuclear membrane

C. Epidermis

D. Cellulose cell wall
1362. RELPs, RAPD are helpful in________________?
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A. All the above

B. Identify new genes

C. Gene mapping

D. Gene sequencing

1363. Cytoplasmic genetic male sterility was first discovered by___________________?
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A. Jones and Davies (1944)

B. Nilson (1900)

C. Bruce and Keeble (1908)

D. Devaries and Correns (1900)

1364. Top cross was first suggested by__________________?
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A. East (1908)

B. Davis (1927)

C. Simmonds (1979)

D. Davenport (1908)

1365. Colchicum () is extracted from__________________?
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A. Seed

B. Flower

C. Fruit

D. Bulb
1366. An individual lacking only one chromosome from the diploid set is referred as_________________?
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A. Nullisomic

B. Tetrasomic

C. Trisomic

D. Monosomic
1367. Herkogamy is found in___________________?
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A. Lucrene

B. Alfalfa

C. Barley

D. Berseen

1368. From a single ear of corn a farmer planted 300 kernels which produced 225 tall and 75 short plants. the genotype of these offsprings are most likely to be_____________________?
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A. TT and tt only

B. TT Tt and tt

C. TT and Tt only

D. Tt and Tt only

1369. The change in chromosome number which involves the entire set of genome is known as______________?
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A. Anenploidy

B. Euploidy

C. Trisomy

D. all the above

1370. Presence of slight differences in identical twins support the hypothesis that___________________?
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A. The environment effects the expression of genetic character

B. Dominance may be incomplete

C. Genetic trails are influence by many genes

D. Single gene may produce multiple effects

1371. Parthenocarpy is the production of____________________?
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A. fruit without fertilization

B. Only seed and no fruit

C. Fruit without pollination

D. Seed without fertilization

1372. Concept of path coefficient analysis was given by_________________?
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A. Fisher (1918)

B. Smith (1936)

C. Wright (1921)

D. Mather (1949)
1373. The concept of multi line varieties was developed by_________________?
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A. Jensen (1952)

B. Goulden (1939)

C. Johannsen (1903)

D. Falconer (1960)

1374. A gene which enhances the natural mutations rate of another gene in the same genome is kanown as___________________?
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A. Mutable gene

B. Recepror gene

C. Articulator gene

D. Mutator gene

1375. If diploid chromo me number in flowering plant is 8 then 4 chromosomes will be present in_________________?
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A. Endosperm cell

B. Leaf cells

C. Cotyledonary cell

D. Synergids
1376. The term homeostasis was coined by_____________________?
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A. Jinks (1968)

B. Freeman (1971)

C. Lemer (1954)

D. Warner (1952)

1377. Vertical resistance is also known as_________________?
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A. Qualitative

B. Race specific

C. Oligogenic

D. All the above
1378. The first artificial hybridization in fruit crops was done by____________________?
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A. Morgan

B. Fischer

C. Muller

D. Knight
1379. Mutation was first discovered by________________?
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A. Wright (1791)

B. deVries (1900)

C. Morgan (1910)

D. Stadler (1928)

1380. Jumping gene was first discovered in______________________?
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A. Maize

B. Sorghum

C. Oenothera

D. Barley

1381. The membrane which surrounds the___________________?
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A. Cutoplasm

B. Nucleus

C. Vacuole

D. Chloroplast

1382. Absence of chlorophyll in a plant is known as__________________?
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A. A gouri

B. Acrodsome

C. Albinism

D. None of the above

1383. Amphimixis refers to_______________________?
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A. None of the above

B. Sexual reproduction

C. Apomixes

D. Asexual reproduction

1384. Out breeding leads to reproduction in____________________?
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A. Homozygosity

B. Heterozygosity

C. Population mean

D. None of the above

1385. In barley, resistance to cereal leaf beetle is associated with_________________?
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A. High benzol alcohol

B. High aspartic acid

C. High silica content

D. Waxiness of leaves
1386. Rice flowers have___________________?
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A. Four stamens

B. None of the above

C. Six stamens

D. Eight stamens

1387. Concept of gene for gene hypothesis was developed in____________________?
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A. Oat

B. Tomato

C. Gram

D. Linseed
1388. In oat an site-specific cross between Ivena sativa and A busantus_____________________?
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A. Fully fertile

B. Incompatible

C. Sterile

D. Partially fertile

1389. Global gene bank of sorghum is located at_______________________?
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A. None of the above

B. ICARDA

C. ICRISAT

D. CIP Peru

1390. Prescribed germination percentage of foundation seed of groundnut____________________?
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A. 90

B. 20

C. 70

D. 95

1391. Evolution may be described as___________________?
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A. History of development of larger biological units

B. Inheritance of acquired characters

C. Cntinuous genetic variation

D. Discontinuous genetic variation

1392. Genetic male sterility is controlled by_________________?
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A. Non alleleic genes

B. All the above

C. nuclear genes

D. Allelic genes

1393. Concept of triple test cross of analysis was developed by____________________?
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A. Anderson (1957)

B. Kearsey and Jinks (1960)

C. Mather (1949)

D. Fisher (1960)

1394. The term recurrent selection was coined by_________________?
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A. Hull (1950)

B. Hays (1919)

C. Garber (1955)

D. Hull (1945)
1395. Protoandry is found in____________________?
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A. Maize

B. Barley

C. Wheat

D. Sorghum

1396. In forage, crops, ideal plant type consists of ______________________?
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A. Dwarf, late green

B. Dwarf stature

C. Tall, leafy, high leaf/stem ratio

D. Late resistance to disease

1397. A plant part which provides top and fruit bearing surface is called__________________?
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A. Root stock

B. Scion

C. Both a & b

1398. Theory of mutation was given by___________________?
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A. Watson

B. De Vries

C. Mendel

D. Tschermak

1399. Name chromosome was coined by ___________________?
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A. Van Beneden

B. Walleye

C. Aluman

D. T. Boveri

1400. Citrus orchards are usually planted in___________________?
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A. Quineunx system

B. None of the above

C. Rectangular system

D. Square system