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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. Linked genes may be separated by the process of
  2. Linkage is
  3. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  4. Lethal genes are those which
  5. Reverse transcription was discovered by
  6. Crossing over in meiosis occurs in
  7. DNA duplication occurs in
  8. The condition in which only one allele of a pair is present is known as
  9. When two genes are situated very close to each other in a chromosome
  10. In a monohybrid cross the Fi ratio of a backcross is
  11. When is the sex of an offspring decided
  12. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  13. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  14. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  15. Albinism in com plants is best described as
  16. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  17. If an individual does not breed true for its characters, it is called
  18. Down's syndrome is an example of
  19. A codon is a sequence of 3 nucleolides on
  20. The chromosomal theroy of heredity implies that
  21. Among the following which is a test cross?
  22.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  23. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  24. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  25. Colour blindness is caused due to
  26. The segment of DNA which participates in crossing over is known as
  27. The number of characters investigated by Mendel was
  28. How many meiosis will be required to produce 102 pollen-grains ?
  29. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  30. The best method to determine whether an individual is homozygous or heterozygous is