Question

i. Why is colour blindness more common in males than females?
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Answer 1

Answer:

Men are much more likely to be colorblind than women because the genes responsible for the most common, inherited color blindnessare on the X chromosome. Malesonly have one X chromosome, while females have two X chromosomes. ... This kind of inheritance pattern is called X-linked, and primarily affects males.

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Answer 2

Answer:

It is because its a sex linked recessive disease.The abnormality is in the X chromosome and since males have only a single X chromosome,the chances are very high for the disease to be expressed.On the other hand, females have 2 X chromosomes,and the defect of one chromosome is overcome by the other properly functioning X chromosome.Females only contract this disorder if both X chromosomes are affected.