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 A chemical mutagen is

A. X-rays

B. UV-rays

C. β-rays

D. 5-Bromo-Uracil

You can do it
  1. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  2. Diakinesis is characterised by
  3. Chromosomes exhibit minimum coiling during
  4. Linked genes may be separated by the process of
  5. Exhibition of superiority by a hybrid over both of its parents is called
  6. The first person to induce mutations was
  7. When is the sex of an offspring decided
  8. In humans, an example of sex-linked trait is
  9. Transfer of a gene or genes through a virus is called
  10. Which one of the following chemical characteristics is not common to all living beings ?
  11. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  12. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  13. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  14. DNA duplication occurs in
  15.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  16. Down's syndrome is an example of
  17. The genetic constitution of an organism is known as
  18. Mutations which are not dominant are not lost by a gene pooL This is known as
  19. Reverse transcription was discovered by
  20. The number of characters investigated by Mendel was
  21. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  22. The segment of DNA which participates in crossing over is known as
  23. Crossing over in meiosis occurs in
  24. Which disease results from the genetic inability to synthesize a single enzyme ?
  25. The chromosomal theroy of heredity implies that
  26. Albinism in com plants is best described as
  27. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  28. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  29. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  30.  A chemical mutagen is