Colour blindness

safaTerkawi

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2022-08-11

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Colour blindness.

Results from inability to detect one of the three primary light colours, red yellow and blue.
Where red and green are indistinguishable is due to failure of red and green cone systems.
In which no colours can be detected is due to failure of all the cones systems.
Is more common in women than men.
Is a disability linked to the Y-chromosome.

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safaTerkawi

2022-08-11

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A. True One or more of the three types of cone fails to function.

B. False It is due to failure of one of the two systems.

C. False It is due to the presence of only one functioning cone system.

D. False It is 20 times more common in men.

E. False Its linkage to the X-chromosome explains its greater frequency in men.

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