Since it has no nucleus it's most likely a<u><em> prokaryote</em></u>
Answer:
colorblindness
Explanation:
Colorblindness is a recessive sex-linked trait. ... Remember that in incomplete dominance, the two traits blend together; in co-dominance, the two traits are equally expressed; and in sex-linked traits, the traits can be dominant or recessive, but they always appear on the X-chromosome.