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. When is the sex of an offspring decided
  2. Which disease results from the genetic inability to synthesize a single enzyme ?
  3. The nuclear membrane completely disappears during
  4. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  5. Exhibition of superiority by a hybrid over both of its parents is called
  6. Lethal genes are those which
  7. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  8. Diakinesis is characterised by
  9. The genetic constitution of an organism is known as
  10. Chromosomes exhibit minimum coiling during
  11. Linkage is
  12. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  13. DNA duplication occurs in
  14. The condition in which only one allele of a pair is present is known as
  15.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  16. Linked genes may be separated by the process of
  17. The number of characters investigated by Mendel was
  18. Klinefelter's syndrome is developed when the chromosome in male is
  19. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  20. Down's syndrome is an example of
  21. A codon is a sequence of 3 nucleolides on
  22. Base substitutions from base analogues I are called
  23. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  24. The best method to determine whether an individual is homozygous or heterozygous is
  25. Albinism in com plants is best described as
  26. Among the following which is a test cross?
  27. Which one of the following chemical characteristics is not common to all living beings ?
  28. The segment of DNA which participates in crossing over is known as
  29. The scientists who rediscovered the Mendel's laws are
  30. How many meiosis will be required to produce 102 pollen-grains ?