Which is incorrect about colour blindness? (1) This is due to defect in either red or green \( P...

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Which is incorrect about colour blindness?
(1) This is due to defect in either red or green
\( P \) cone of eye resulting in failure to discriminate

W between red and green colour.
(2) A daugther will not normally be colour blind, unless her mother is a carrier and her father is colour blind.
(3) If female has \( X^{c} X \) then it is called carrier but when male has then \( X^{c} Y \) then it will be colour blind
(4) The son of a woman who carries the gene has 25 per cent chance of being colour blind.
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