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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. Which disease results from the genetic inability to synthesize a single enzyme ?
  2. The first person to induce mutations was
  3. Among the following which is a test cross?
  4. The number of characters investigated by Mendel was
  5. Down's syndrome is an example of
  6. The nuclear membrane completely disappears during
  7. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  8. In humans, an example of sex-linked trait is
  9. A codon is a sequence of 3 nucleolides on
  10. When is the sex of an offspring decided
  11. A child is bom with an extra chromosome in each of its cells. This is usually the result of
  12. The best method to determine whether an individual is homozygous or heterozygous is
  13. Transfer of a gene or genes through a virus is called
  14. Linkage is
  15. The chromosomal theroy of heredity implies that
  16. Chromosomes exhibit minimum coiling during
  17. Exhibition of superiority by a hybrid over both of its parents is called
  18. If an individual does not breed true for its characters, it is called
  19. How many meiosis will be required to produce 102 pollen-grains ?
  20. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  21. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  22. In a monohybrid cross the Fi ratio of a backcross is
  23. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  24. Reverse transcription was discovered by
  25. Crossing over in meiosis occurs in
  26. Albinism in com plants is best described as
  27. The scientists who rediscovered the Mendel's laws are
  28. DNA duplication occurs in
  29. Klinefelter's syndrome is developed when the chromosome in male is
  30. The segment of DNA which participates in crossing over is known as