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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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  1. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  2. The number of characters investigated by Mendel was
  3. If an individual does not breed true for its characters, it is called
  4. When is the sex of an offspring decided
  5. Among the following which is a test cross?
  6. The best method to determine whether an individual is homozygous or heterozygous is
  7. Albinism in com plants is best described as
  8. Chromosomes exhibit minimum coiling during
  9. Klinefelter's syndrome is developed when the chromosome in male is
  10. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  11. The scientists who rediscovered the Mendel's laws are
  12. Mutations which are not dominant are not lost by a gene pooL This is known as
  13. The genetic constitution of an organism is known as
  14.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  15. Lethal genes are those which
  16. In a monohybrid cross the Fi ratio of a backcross is
  17. The segment of DNA which participates in crossing over is known as
  18. Diakinesis is characterised by
  19. Crossing over in meiosis occurs in
  20. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  21. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  22.  A chemical mutagen is
  23. When two genes are situated very close to each other in a chromosome
  24. DNA duplication occurs in
  25. The chromosomal theroy of heredity implies that
  26. The condition in which only one allele of a pair is present is known as
  27. Linkage is
  28. Down's syndrome is an example of
  29. The first person to induce mutations was
  30. Colour blindness is caused due to