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Crossing over in meiosis occurs in

A. leptotene

B. pachytene

C. diplotene

D. diakinesis

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  1. Mutations which are not dominant are not lost by a gene pooL This is known as
  2. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  3. Down's syndrome is an example of
  4. Lethal genes are those which
  5. Crossing over in meiosis occurs in
  6. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  7. Albinism in com plants is best described as
  8. Dyad is
  9. Linkage is
  10. When is the sex of an offspring decided
  11. The segment of DNA which participates in crossing over is known as
  12. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  13. The scientists who rediscovered the Mendel's laws are
  14. DNA duplication occurs in
  15. Reverse transcription was discovered by
  16. In a monohybrid cross the Fi ratio of a backcross is
  17. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  18. The term 'meiosis' was coined bv
  19. Diakinesis is characterised by
  20. The chromosomal theroy of heredity implies that
  21. Klinefelter's syndrome is developed when the chromosome in male is
  22. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  23. How many meiosis will be required to produce 102 pollen-grains ?
  24. Which one of the following chemical characteristics is not common to all living beings ?
  25. The genetic constitution of an organism is known as
  26. Exhibition of superiority by a hybrid over both of its parents is called
  27. Linked genes may be separated by the process of
  28. Transfer of a gene or genes through a virus is called
  29. In humans, an example of sex-linked trait is
  30. Among the following which is a test cross?