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DNA duplication occurs in

A. meiosis only

B. meiosis II and mitosis

C. mitosis only

D. meiosis I and mitosis

You can do it
  1. Which one of the following chemical characteristics is not common to all living beings ?
  2.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  3. In a monohybrid cross the Fi ratio of a backcross is
  4. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  5. The best method to determine whether an individual is homozygous or heterozygous is
  6. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  7. Linked genes may be separated by the process of
  8. The science dealing with study of inheritance and variation is
  9. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  10. The number of characters investigated by Mendel was
  11. Dyad is
  12. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  13. If an individual does not breed true for its characters, it is called
  14. The first person to induce mutations was
  15. Among the following which is a test cross?
  16. Crossing over in meiosis occurs in
  17.  A chemical mutagen is
  18. Lethal genes are those which
  19. The chromosomal theroy of heredity implies that
  20. When two genes are situated very close to each other in a chromosome
  21. Exhibition of superiority by a hybrid over both of its parents is called
  22. In humans, an example of sex-linked trait is
  23. Down's syndrome is an example of
  24. Diakinesis is characterised by
  25. Albinism in com plants is best described as
  26. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  27. Transfer of a gene or genes through a virus is called
  28. Klinefelter's syndrome is developed when the chromosome in male is
  29. Mutations which are not dominant are not lost by a gene pooL This is known as
  30. The segment of DNA which participates in crossing over is known as