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The first person to induce mutations was

A. Hugo de Vries

B. T.H. Morgan

C. Sturtevant

D. H.J. Muller

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  1. Albinism in com plants is best described as
  2. Klinefelter's syndrome is developed when the chromosome in male is
  3. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  4. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  5. The term 'meiosis' was coined bv
  6. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  7. Linked genes may be separated by the process of
  8. A codon is a sequence of 3 nucleolides on
  9. Down's syndrome is an example of
  10. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  11. The genetic constitution of an organism is known as
  12. Chromosomes exhibit minimum coiling during
  13. The number of characters investigated by Mendel was
  14. When is the sex of an offspring decided
  15. How many meiosis will be required to produce 102 pollen-grains ?
  16. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  17. In a monohybrid cross the Fi ratio of a backcross is
  18. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  19. The nuclear membrane completely disappears during
  20. DNA duplication occurs in
  21. The condition in which only one allele of a pair is present is known as
  22. Among the following which is a test cross?
  23. Transfer of a gene or genes through a virus is called
  24. Mutations which are not dominant are not lost by a gene pooL This is known as
  25. Base substitutions from base analogues I are called
  26. The science dealing with study of inheritance and variation is
  27. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  28. The best method to determine whether an individual is homozygous or heterozygous is
  29. The segment of DNA which participates in crossing over is known as
  30. An offspring of two homozygous parents different from one another by alleles at only one gene locus…