Coat color in cats is determined by genes at several differe…
Coat color in cats is determined by genes at several different loci. At one locus on the X chromosome, one allele (X+) encodes black fur; another allele (Xo) encodes orange fur. Females can be black (X+X+), orange (Xo Xo), or a mixture of orange and black called tortoiseshell (X+Xo). Males are either black (X+Y) or orange (XoY). There is another gene on an autosome that determines how saturated the coat color is. The full color allele (D) gives a saturated coated color and is dominant to dilute color (d) that leads to a lighter coat color. If a full color tortoiseshell female cat is crossed to a full color orange male cat (both cats are heterozygous at the D locus), what proportion of the progeny would you expect to be full color orange males?If a full color tortoiseshell female cat is crossed to a full color orange male cat (both cats are heterozygous at the D locus), what proportion of the progeny would you expect to be dilute color tortoiseshell females?
Read Details