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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. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  2. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  3.  A chemical mutagen is
  4. The best method to determine whether an individual is homozygous or heterozygous is
  5. The nuclear membrane completely disappears during
  6. The chromosomal theroy of heredity implies that
  7. Dyad is
  8. Linkage is
  9. DNA duplication occurs in
  10. The number of characters investigated by Mendel was
  11. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  12. Chromosomes exhibit minimum coiling during
  13. If an individual does not breed true for its characters, it is called
  14. Exhibition of superiority by a hybrid over both of its parents is called
  15. The science dealing with study of inheritance and variation is
  16.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  17. In humans, an example of sex-linked trait is
  18. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  19. The condition in which only one allele of a pair is present is known as
  20. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  21. Klinefelter's syndrome is developed when the chromosome in male is
  22. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  23. Which one of the following chemical characteristics is not common to all living beings ?
  24. A codon is a sequence of 3 nucleolides on
  25. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  26. The segment of DNA which participates in crossing over is known as
  27. Diakinesis is characterised by
  28. Lethal genes are those which
  29. In a monohybrid cross the Fi ratio of a backcross is
  30. Mutations which are not dominant are not lost by a gene pooL This is known as