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The segment of DNA which participates in crossing over is known as

A. recon

B. muton

C. criston

D. replicon

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  1. Exhibition of superiority by a hybrid over both of its parents is called
  2. The first person to induce mutations was
  3. Which one of the following chemical characteristics is not common to all living beings ?
  4. Among the following which is a test cross?
  5. Transfer of a gene or genes through a virus is called
  6. Klinefelter's syndrome is developed when the chromosome in male is
  7. Base substitutions from base analogues I are called
  8. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  9. A codon is a sequence of 3 nucleolides on
  10. Linked genes may be separated by the process of
  11. DNA duplication occurs in
  12. The scientists who rediscovered the Mendel's laws are
  13. The number of characters investigated by Mendel was
  14. If an individual does not breed true for its characters, it is called
  15. Chromosomes exhibit minimum coiling during
  16. Linkage is
  17. How many meiosis will be required to produce 102 pollen-grains ?
  18. Albinism in com plants is best described as
  19. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  20. The science dealing with study of inheritance and variation is
  21. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  22. Reverse transcription was discovered by
  23. Dyad is
  24. When is the sex of an offspring decided
  25. Diakinesis is characterised by
  26. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  27. Lethal genes are those which
  28. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  29. In a monohybrid cross the Fi ratio of a backcross is
  30. In the Operon concept, the regulator gene regulates chemical reactions in the cell by