
Concept explainers
In rats, the following genotypes of two independently assorting autosomal genes determine coat color:
A 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 F1
- (a) AAbbCC × aaBBcc
- (b) AaBBCC × AABbcc
- (c) AaBbCc × AaBbcc
- (d) AaBBCc × AaBBCc
- (e) AABbCc × AABbcc

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Chapter 4 Solutions
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