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STD 12 - 4. principal of inheritance and variation — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 4. principal of inheritance and variation1 Mark
MCQ
Colour blindness results from
  • A
    Absence of rods
  • ✓
    Absence of cones
  • C
    Absence of eyelids
  • D
    Inverted retina
✓

Answer

Correct option: B.
Absence of cones
b
(b)Rod is a kind of light-sensitive nerve cell present in vertebrate retina. Rods do not discriminate fine details or colour differences.

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