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4., , The term pure line was coined by :, , (a) Janssens (b) Johannsen, , (c) Shull (d) Hull., , Johannsen coined the term :, , {a) Pureline (b) Gentype, , (c) Phenotype (d) All of these., , The concept of pureline theory was developed by :, , (a) Vilmorin (b) Johannsen, , (c) East (d) Devenport., Johannsen developed the concept of pure line theory in :, (a) 1903 (b) 1909, , (c) 1926 (d) 1930., , The concept of pure line theory was developed. with :, (a) Maize (b) Common bean, (c) Garden pea (d)-Wheat., , Pure lines are : :, , (a} Homozygous, (c) Highly uniform, , (b) Homogeneous, {d) All of these.

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7. Purelines have : ‘~, (a) Narrow genetic base (b) Poor adaptability, , (c) No genetic variation (d) All of these., 8. Ina pure line variety, variation arises due :, , (a) Outcrossing (b) Mutations, , (c) Mechanical admixture (d) All of these., 9. The progeny test was developed by :, , (a) Johannsen (b) Vilmorin, (c) Lecouteur (d) Allard., 10. The term selection was coined by :, (a) Winkler (b) Darwin, (c) East / (d) Shull., 11. Darwin coined the term selection in :, (a) 1848, (b) 1858, (c) 1865 (a) 1880., 12. The term selection pressure was first used by:, (a) East (b) Wright, (c) Mather (d) De Vries., 13. Wright coined the term selection pressure in:, (a) 1910 (b) 1921, (c) 1926 (d) 1931., 14. The term selection differential was first used by ;, (a) Mather (b) Lush, (c) Goulden (d) Falconer., 15. Lush coined the term selection differential in :, (a) 1925 (b) 1935, (c) 1945 (d) 1955., 16. Mass selected varieties have :, (a) Broad genetic base i i, (c) Heritable variation be Mier a, 17. Mass selected varieties (in self pollinated crops) are :, (a) Homozygous (b) Homogeneo :, (c) Heterogeneous (d) aand c, s, 18. 7 = method of mass selection a suggested by :, (c) Jensen vee, (d) Allard., , 19. Gardner suggested thi, teh 1940 i ¢ grid method of mass selection in:, , b) 195:, on i on, 20. The mass selection is based on: :, (a) Genotype ;, (c) Phenotype (b) Genetic value, , (d) All of these.

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21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , Mass selection is more commonly used in:, , (a) Self pollinated crops (b) Cross pollinated crops, (c) Vegetatively propagated crops (d) All of these., , In cross pollinated crops, mass selected varieties are :, (a) Heterogeneous (b) Heterozygous, (c) Less uniform (d) All of these., , The terms clone was first used by :, , (a) Winkler (b) Webber, , (c) Smith 7 (d) Vilmorin, , Webber first used the term clone in: :, , (a) 1885 (b) 1903, , (c) 1910 (d) 1921., , A clonal variety is :, , (a) Heterozygous (b) Homogeneous, , (c) Highly uniform (d) All of these., Segregation occurs in Fl when cross is made between two:, (a) Pure lines (b) Inbred lines, , (c) Clones : (d) All of these., Clonal selection is practised in :, , (a) Sugarcane (b) Potato, , (c) Sweet potato (d) All of these., Clones have : ., , (a) Heterozygosity (b) Uniformity, , (c) Wide adaptation (d) All of these., , In a clonal variety, variation arises due to:, , (a) Bud mutation (b) Mechanical mixture, , (c) Occasional sexual reproduction (d) All of these.