A colorblind human male carries
A. a dominant allele for colorblindness on the Y chromosome.
B. a recessive allele for colorblindness on the Y chromosome.
C. a dominant allele for colorblindness on the X chromosome.
D. a recessive allele for colorblindness on the X chromosome.

Question

A colorblind human male carries 
	A.	a dominant allele for colorblindness on the Y chromosome.
	B.	a recessive allele for colorblindness on the Y chromosome.
	C.	a dominant allele for colorblindness on the X chromosome.
	D.	a recessive allele for colorblindness on the X chromosome.

goodkylekiller · Answer

b i think

abhisar · Answer

Its D

goodkylekiller · Answer

oh damn

anonymous · Answer

thnx both

anonymous · Answer

somy too

somy · Answer

how do u know? @Abhisar i'd like to understand how is it >3<

somy · Answer

owh i didn't do anything here though T_T

anonymous · Answer

but you where helpping me all the time too

alphadxg · Answer

@Somy Can't be on the Y chromosomes, so can't be A or B, there are very few Sex linked Dominant traits that can be passed, one would be HD, recessive would be hemophilia, color blindness etc.

alphadxg · Answer

@Somy VERY rare for a trait to be passed on the Y chromosomes.

abhisar · Answer

Mark zukerberg is color blind

somy · Answer

ohhhh interesting

abhisar · Answer

That's why facebook is all blue and white

alphadxg · Answer

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So if the X chromosomes is recessive than the male has a 50% chance of being color blind.