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DNA duplication occurs in

A. meiosis only

B. meiosis II and mitosis

C. mitosis only

D. meiosis I and mitosis

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  1. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  2. Linked genes may be separated by the process of
  3. Mutations which are not dominant are not lost by a gene pooL This is known as
  4. Lethal genes are those which
  5. Which one of the following chemical characteristics is not common to all living beings ?
  6. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  7. A codon is a sequence of 3 nucleolides on
  8. In a monohybrid cross the Fi ratio of a backcross is
  9. Albinism in com plants is best described as
  10.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  11. How many meiosis will be required to produce 102 pollen-grains ?
  12. Linkage is
  13. Klinefelter's syndrome is developed when the chromosome in male is
  14. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  15. Down's syndrome is an example of
  16. The number of characters investigated by Mendel was
  17. Reverse transcription was discovered by
  18. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  19. The condition in which only one allele of a pair is present is known as
  20. The genetic constitution of an organism is known as
  21. Base substitutions from base analogues I are called
  22. When two genes are situated very close to each other in a chromosome
  23. The science dealing with study of inheritance and variation is
  24. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  25. Transfer of a gene or genes through a virus is called
  26. The first person to induce mutations was
  27. Crossing over in meiosis occurs in
  28. Diakinesis is characterised by
  29. Which disease results from the genetic inability to synthesize a single enzyme ?
  30. The chromosomal theroy of heredity implies that