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. Klinefelter's syndrome is developed when the chromosome in male is
  2. The genetic constitution of an organism is known as
  3. Exhibition of superiority by a hybrid over both of its parents is called
  4. Among the following which is a test cross?
  5. Dyad is
  6. Colour blindness is caused due to
  7. Chromosomes exhibit minimum coiling during
  8. When is the sex of an offspring decided
  9. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  10. How many meiosis will be required to produce 102 pollen-grains ?
  11. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  12. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  13. DNA duplication occurs in
  14. In a monohybrid cross the Fi ratio of a backcross is
  15. Lethal genes are those which
  16. Crossing over in meiosis occurs in
  17. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  18. Linkage is
  19. The first person to induce mutations was
  20. The science dealing with study of inheritance and variation is
  21. The chromosomal theroy of heredity implies that
  22. The term 'meiosis' was coined bv
  23. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  24. Transfer of a gene or genes through a virus is called
  25. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  26. The condition in which only one allele of a pair is present is known as
  27. The nuclear membrane completely disappears during
  28.  A chemical mutagen is
  29. When two genes are situated very close to each other in a chromosome
  30. Down's syndrome is an example of