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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  1. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  2. The segment of DNA which participates in crossing over is known as
  3. Albinism in com plants is best described as
  4. Klinefelter's syndrome is developed when the chromosome in male is
  5. Linked genes may be separated by the process of
  6. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  7. When two genes are situated very close to each other in a chromosome
  8. DNA duplication occurs in
  9. Crossing over in meiosis occurs in
  10. When is the sex of an offspring decided
  11.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  12. The condition in which only one allele of a pair is present is known as
  13. The number of characters investigated by Mendel was
  14. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  15. The science dealing with study of inheritance and variation is
  16. Dyad is
  17. The genetic constitution of an organism is known as
  18. In humans, an example of sex-linked trait is
  19. Linkage is
  20. The chromosomal theroy of heredity implies that
  21. Which disease results from the genetic inability to synthesize a single enzyme ?
  22.  A chemical mutagen is
  23. Mutations which are not dominant are not lost by a gene pooL This is known as
  24. A codon is a sequence of 3 nucleolides on
  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