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Which one of the following chemical characteristics is not common to all living beings ?

A. Similar triplet codes for amino acids

B. Energy is stored by high energy rich phosphate bonds

C. Types of protein present in the body.

D. Ribosomes act at sites of protein synthesis

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  2. The segment of DNA which participates in crossing over is known as
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  8. DNA duplication occurs in
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  19. Linkage is
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  22.  A chemical mutagen is
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  25. Reverse transcription was discovered by
  26. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  27. How many meiosis will be required to produce 102 pollen-grains ?
  28. Base substitutions from base analogues I are called
  29. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  30. Lethal genes are those which