Red-green colorblindness is caused by a mutation in a gene on the X-chromosome. Bob (dad) has red-green colorblindness. Karen (mom) has color vision. Bob and Karen have a biological child named Taylor, who does not have red-green colorblindness. Taylor marries someone who has red-green colorblindness and they have 2 boys and 8 girls. Both boys have red-green colorblindness while all their sisters have color vision. Taylor is most likely: