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Colour blindness is caused due to

A. deficiency of vitamic C

B. sex-linked abnormality

C. absence of rods in retina

D. absence of visual purple in retina

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  1. Dyad is
  2. The genetic constitution of an organism is known as
  3. How many meiosis will be required to produce 102 pollen-grains ?
  4. Diakinesis is characterised by
  5. Colour blindness is caused due to
  6. In humans, an example of sex-linked trait is
  7. In the Operon concept, the regulator gene regulates chemical reactions in the cell by
  8. An offspring of two homozygous parents different from one another by alleles at only one gene locus…
  9. Base substitutions from base analogues I are called
  10. Which disease results from the genetic inability to synthesize a single enzyme ?
  11. The scientists who rediscovered the Mendel's laws are
  12. The best method to determine whether an individual is homozygous or heterozygous is
  13. A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
  14. Reverse transcription was discovered by
  15. Chromosomes exhibit minimum coiling during
  16. Albinism in com plants is best described as
  17. Transfer of a gene or genes through a virus is called
  18. When is the sex of an offspring decided
  19. A functional unit of a gene which specifies synthesis of one poly-peptide is known as
  20. The number of characters investigated by Mendel was
  21. A codon is a sequence of 3 nucleolides on
  22. Lethal genes are those which
  23. The nuclear membrane completely disappears during
  24. Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
  25. Mutations which are not dominant are not lost by a gene pooL This is known as
  26. A colour-blind man marries the daughter of a colour-blind person. In their progeny
  27. The term 'meiosis' was coined bv
  28. The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
  29. Down's syndrome is an example of
  30. The science dealing with study of inheritance and variation is