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In humans, an example of sex-linked trait is

A. Curly hair

B. Sickle-cell anaemia

C. Colour-blindness

D. Down's syndrome

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  1. The chromosomal theroy of heredity implies that
  2. DNA duplication occurs in
  3. The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
  4. If an individual does not breed true for its characters, it is called
  5. Base substitutions from base analogues I are called
  6. Diakinesis is characterised by
  7. Linkage is
  8. Albinism in com plants is best described as
  9. The number of characters investigated by Mendel was
  10. Dyad is
  11. The term 'meiosis' was coined bv
  12.  A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
  13. Mutations which are not dominant are not lost by a gene pooL This is known as
  14. The scientists who rediscovered the Mendel's laws are
  15. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  16. The best method to determine whether an individual is homozygous or heterozygous is
  17. The first person to induce mutations was
  18. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  19.  A chemical mutagen is
  20. Klinefelter's syndrome is developed when the chromosome in male is
  21. Reverse transcription was discovered by
  22. Which one of the following chemical characteristics is not common to all living beings ?
  23. Colour blindness is caused due to
  24. How many meiosis will be required to produce 102 pollen-grains ?
  25. In humans, an example of sex-linked trait is
  26. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  27. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  28. The science dealing with study of inheritance and variation is
  29. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  30. Chromosomes exhibit minimum coiling during