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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. How many meiosis will be required to produce 102 pollen-grains ?
  2. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  3. Mutations which are not dominant are not lost by a gene pooL This is known as
  4. Colour blindness is caused due to
  5. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  6. The scientists who rediscovered the Mendel's laws are
  7. The science dealing with study of inheritance and variation is
  8. Chromosomes exhibit minimum coiling during
  9. Which disease results from the genetic inability to synthesize a single enzyme ?
  10. Klinefelter's syndrome is developed when the chromosome in male is
  11. The condition in which only one allele of a pair is present is known as
  12. Exhibition of superiority by a hybrid over both of its parents is called
  13. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  14. Lethal genes are those which
  15. The number of characters investigated by Mendel was
  16. Transfer of a gene or genes through a virus is called
  17. The segment of DNA which participates in crossing over is known as
  18.  A chemical mutagen is
  19. Linked genes may be separated by the process of
  20. Which one of the following chemical characteristics is not common to all living beings ?
  21. Crossing over in meiosis occurs in
  22. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  23. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  24. If an individual does not breed true for its characters, it is called
  25. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  26. Albinism in com plants is best described as
  27. DNA duplication occurs in
  28. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  29. The term 'meiosis' was coined bv
  30. Down's syndrome is an example of