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A codon is a sequence of 3 nucleolides on

A. t-RNA

B. m-RNA

C. s-RNA

D. hn-RNA

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  1. Down's syndrome is an example of
  2. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  3.  A chemical mutagen is
  4. Among the following which is a test cross?
  5. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  6. Crossing over in meiosis occurs in
  7. Mutations which are not dominant are not lost by a gene pooL This is known as
  8. The best method to determine whether an individual is homozygous or heterozygous is
  9. Which one of the following chemical characteristics is not common to all living beings ?
  10. The genetic constitution of an organism is known as
  11. Reverse transcription was discovered by
  12. Albinism in com plants is best described as
  13. Exhibition of superiority by a hybrid over both of its parents is called
  14. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  15. Colour blindness is caused due to
  16. Base substitutions from base analogues I are called
  17. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  18. Diakinesis is characterised by
  19. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  20. If an individual does not breed true for its characters, it is called
  21. Linkage is
  22. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  23. Transfer of a gene or genes through a virus is called
  24. Which disease results from the genetic inability to synthesize a single enzyme ?
  25. Chromosomes exhibit minimum coiling during
  26. The segment of DNA which participates in crossing over is known as
  27. The chromosomal theroy of heredity implies that
  28. When is the sex of an offspring decided
  29. DNA duplication occurs in
  30. In humans, an example of sex-linked trait is