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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.  A chemical mutagen is
  2. Dyad is
  3. The genetic constitution of an organism is known as
  4. A codon is a sequence of 3 nucleolides on
  5. The chromosomal theroy of heredity implies that
  6. Colour blindness is caused due to
  7. How many meiosis will be required to produce 102 pollen-grains ?
  8. In a monohybrid cross the Fi ratio of a backcross is
  9. The first person to induce mutations was
  10. DNA duplication occurs in
  11. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  12. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  13. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  14. The number of characters investigated by Mendel was
  15. Linked genes may be separated by the process of
  16. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  17. Base substitutions from base analogues I are called
  18.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  19. Chromosomes exhibit minimum coiling during
  20. The segment of DNA which participates in crossing over is known as
  21. The term 'meiosis' was coined bv
  22. Mutations which are not dominant are not lost by a gene pooL This is known as
  23. Transfer of a gene or genes through a virus is called
  24. Diakinesis is characterised by
  25. The condition in which only one allele of a pair is present is known as
  26. Crossing over in meiosis occurs in
  27. Which one of the following chemical characteristics is not common to all living beings ?
  28. In humans, an example of sex-linked trait is
  29. The science dealing with study of inheritance and variation is
  30. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…