Colour blindness in man is

  • A
    Due to deficiency of vitamin $A$
  • B
    Due to absence of visual purple in retina
  • C
    Due to absence of rods in retina
  • D
    $A$ sex-linked abnormality

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Similar Questions

Select the incorrect statement with regard to haemophilia.

Which of the following is not $X$-linked recessive?

What will be the percentage of affected sons,whose father is colour-blind and mother is normal (in $\%$)?

Which hereditary disease condition is characterized by the failure of blood to coagulate?

$A$ normal woman whose father was colourblind marries a normal man. What kinds of children would be expected and in what proportion?

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