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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. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  2. Lethal genes are those which
  3.  A chemical mutagen is
  4. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  5. The scientists who rediscovered the Mendel's laws are
  6. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  7. Base substitutions from base analogues I are called
  8. The nuclear membrane completely disappears during
  9. The term 'meiosis' was coined bv
  10. How many meiosis will be required to produce 102 pollen-grains ?
  11. Dyad is
  12. Exhibition of superiority by a hybrid over both of its parents is called
  13. Reverse transcription was discovered by
  14. Which one of the following chemical characteristics is not common to all living beings ?
  15. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  16.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  17. Albinism in com plants is best described as
  18. Chromosomes exhibit minimum coiling during
  19. Which disease results from the genetic inability to synthesize a single enzyme ?
  20. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  21. The science dealing with study of inheritance and variation is
  22. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  23. When is the sex of an offspring decided
  24. If an individual does not breed true for its characters, it is called
  25. Mutations which are not dominant are not lost by a gene pooL This is known as
  26. A codon is a sequence of 3 nucleolides on
  27. The best method to determine whether an individual is homozygous or heterozygous is
  28. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  29. The condition in which only one allele of a pair is present is known as
  30. DNA duplication occurs in