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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. If an individual does not breed true for its characters, it is called
  2. In a monohybrid cross the Fi ratio of a backcross is
  3. Klinefelter's syndrome is developed when the chromosome in male is
  4. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  5. Which one of the following chemical characteristics is not common to all living beings ?
  6. Transfer of a gene or genes through a virus is called
  7. The condition in which only one allele of a pair is present is known as
  8.  A chemical mutagen is
  9. Colour blindness is caused due to
  10. Exhibition of superiority by a hybrid over both of its parents is called
  11. Linked genes may be separated by the process of
  12. Reverse transcription was discovered by
  13. The segment of DNA which participates in crossing over is known as
  14. Crossing over in meiosis occurs in
  15. The genetic constitution of an organism is known as
  16. The science dealing with study of inheritance and variation is
  17. In humans, an example of sex-linked trait is
  18. Albinism in com plants is best described as
  19. A codon is a sequence of 3 nucleolides on
  20. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  21. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  22. The nuclear membrane completely disappears during
  23. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  24. Base substitutions from base analogues I are called
  25. Diakinesis is characterised by
  26. When is the sex of an offspring decided
  27.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  28. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  29. Lethal genes are those which
  30. A child is bom with an extra chromosome in each of its cells. This is usually the result of