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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. Klinefelter's syndrome is developed when the chromosome in male is
  3. Mutations which are not dominant are not lost by a gene pooL This is known as
  4. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  5. Linked genes may be separated by the process of
  6. The number of characters investigated by Mendel was
  7. Diakinesis is characterised by
  8. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  9. Which one of the following chemical characteristics is not common to all living beings ?
  10. Chromosomes exhibit minimum coiling during
  11. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  12. The condition in which only one allele of a pair is present is known as
  13. The chromosomal theroy of heredity implies that
  14. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  15. When is the sex of an offspring decided
  16. In a monohybrid cross the Fi ratio of a backcross is
  17. Base substitutions from base analogues I are called
  18. DNA duplication occurs in
  19. In humans, an example of sex-linked trait is
  20. Exhibition of superiority by a hybrid over both of its parents is called
  21. The best method to determine whether an individual is homozygous or heterozygous is
  22. Albinism in com plants is best described as
  23. Colour blindness is caused due to
  24. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  25. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  26. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  27. Among the following which is a test cross?
  28. Which disease results from the genetic inability to synthesize a single enzyme ?
  29. Down's syndrome is an example of
  30. Crossing over in meiosis occurs in