Genetics problem; need help por favor?
Red-green color blindness is a sex-linked trait. If a husband and wife (whose father was color blind) both have normal color vision, what proportion of their sons would be expected to have red-green color blindness? Explain.
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Wife is XCXc (Xc is the recessive color blind allele from her father)
Husband is XCY
XCXc x XCY gives XCXC,XCXc,( Daughters) XCY,XcY.(Sons = 50% are color blind XcY).