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Concepts of Genetics 11th Edition by William Klug,Michael Cummings,Charlotte Spencer,Michael Palladino
Edition 11ISBN: 9781292139456Concepts of Genetics 11th Edition by William Klug,Michael Cummings,Charlotte Spencer,Michael Palladino
Edition 11ISBN: 9781292139456 Exercise 18
Given the inheritance pattern of coat color in rats described in Problem, predict the genotype and phenotype of the parents who produced the following offspring:
(a) 9/16 gray: 3/16 yellow: 3/16 black: 1/16 cream
(b) 9/16 gray: 3/16 yellow: 4/16 albino
(c) 27/64 gray: 16/64 albino: 9/64 yellow: 9/64 black: 3/64 cream
(d) 3/8 black: 3/8 cream: 2/8 albino
(e) 3/8 black: 4/8 albino: 1/8 cream
In rats, the following genotypes of two independently assorting autosomal genes determine coat color:
▪third gene pair on a separate autosome determines whether or not any color will be produced. The CC and Cc genotypes allow color according to the expression of the A and B alleles. However, the cc genotype results in albino rats regardless of the A and B alleles present. Determine the F 1 phenotypic ratio of the following crosses:
(a) AAbbCC × aaBBcc
(b) AaBBCC × AABbcc
(c) AaBbCc × AaBbcc
(d) AaBBCc × AaBBCc
(e) AABbCc × AABbcc
(a) 9/16 gray: 3/16 yellow: 3/16 black: 1/16 cream
(b) 9/16 gray: 3/16 yellow: 4/16 albino
(c) 27/64 gray: 16/64 albino: 9/64 yellow: 9/64 black: 3/64 cream
(d) 3/8 black: 3/8 cream: 2/8 albino
(e) 3/8 black: 4/8 albino: 1/8 cream
In rats, the following genotypes of two independently assorting autosomal genes determine coat color:
▪third gene pair on a separate autosome determines whether or not any color will be produced. The CC and Cc genotypes allow color according to the expression of the A and B alleles. However, the cc genotype results in albino rats regardless of the A and B alleles present. Determine the F 1 phenotypic ratio of the following crosses:(a) AAbbCC × aaBBcc
(b) AaBBCC × AABbcc
(c) AaBbCc × AaBbcc
(d) AaBBCc × AaBBCc
(e) AABbCc × AABbcc
Explanation
Verified
Verified
(a)Multiple genes interact with each oth...
Concepts of Genetics 11th Edition by William Klug,Michael Cummings,Charlotte Spencer,Michael Palladino
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