Pigment in the mouse is produced only when the C allele is present.Individuals of the cc genotype have no color. If color is present,it may be determined by the A and a alleles. AA or Aa resultsin agouti color, whereas aa results in black coats.(a) What F1 and F2 genotypic and phenotypic ratios areobtained from a cross between AACC and aacc mice?(b) In the three crosses shown here between agouti femaleswhose genotypes were unknown and males of the aaccgenotype, what are the genotypes of the female parents foreach of the following phenotypic ratios? (1) 8 agouti (2) 9 agouti (3) 4 agouti8 colorless 10 black 5 black 10 colorless
Pigment in the mouse is produced only when the C allele is present.
Individuals of the cc genotype have no color. If color is present,
it may be determined by the A and a alleles. AA or Aa results
in agouti color, whereas aa results in black coats.
(a) What F1 and F2 genotypic and
obtained from a cross between AACC and aacc mice?
(b) In the three crosses shown here between agouti females
whose genotypes were unknown and males of the aacc
genotype, what are the genotypes of the female parents for
each of the following phenotypic ratios?
(1) 8 agouti (2) 9 agouti (3) 4 agouti
8 colorless 10 black 5 black
10 colorless
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