A member asked:

Does karyotype of person with color deficiency change?

A doctor has provided 1 answer

No: Color deficiency is due to a change in the DNA strand. It is not a chromosomal (karyotype) issue. Downs, for instance, is a karyotype problem from an excess of one more chromosome 21s. You cannot tell color deficiency by counting chromosomes or looking for broken chromosomes.

Answered 11/19/2014

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