Question

Because it is sex-linked, it only takes one copy of the recessive colorblind allele to cause colorblindness in males.

Answer 1

The reason is the gene is located on the X-chromosome. Since men only posses one X-chromosome they are more likely to be affected as they only need to have 1 defective gene. Considering women have 2 X-chromosomes they would need to have the defective gene on BOTH chromosomes to suffer from colour blindness.
As for the above responses: Women have 2 X-chromosomes there is no garuntee which one she pass to her son, so the only way a women will know for sure if she is passing on colour blindness to her son/daughter is if she herself is colour blind (ie 2 defective genes)

Answer 2

so would it be True or False

Answer 3

Sorry I have forgotten Biology... But if have any questions in Maths and Physics, I can surely help..

Answer 4

@roh would that be True then?

Answer 5

I think it is true...

Answer 6

Rohan your answer is a very good one...

Answer 7

thanx sid!!