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The nuclear membrane completely disappears during

A. late prophase

B. early metaphase

C. metaphase

D. interphase

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  1. Among the following which is a test cross?
  2. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  3. Reverse transcription was discovered by
  4. When two genes are situated very close to each other in a chromosome
  5. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  6. The first person to induce mutations was
  7. Colour blindness is caused due to
  8. When is the sex of an offspring decided
  9. Crossing over in meiosis occurs in
  10. Albinism in com plants is best described as
  11. The genetic constitution of an organism is known as
  12. The science dealing with study of inheritance and variation is
  13. In a monohybrid cross the Fi ratio of a backcross is
  14. Klinefelter's syndrome is developed when the chromosome in male is
  15. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  16. The scientists who rediscovered the Mendel's laws are
  17. Which one of the following chemical characteristics is not common to all living beings ?
  18. Down's syndrome is an example of
  19.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  20. Exhibition of superiority by a hybrid over both of its parents is called
  21. The best method to determine whether an individual is homozygous or heterozygous is
  22. In humans, an example of sex-linked trait is
  23. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  24. The term 'meiosis' was coined bv
  25. Linked genes may be separated by the process of
  26. Linkage is
  27. A giant chromosome having many chromo-nemata lying side by side all along their length is called
  28. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  29. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  30. A functional unit of a gene which specifies synthesis of one poly-peptide is known as