Single Crossover Recombinant Chromatids
Alleles A-B-C-D are located on one chromosome, and alleles a-b-c-d are located on its homologous chromosome. During meiosis, a single crossover occurs between genes A and B. Which of the following represents a possible recombinant chromatid resulting from this crossover?
A
A-B-C-d
B
A-B-c-d
C
A-b-c-d
D
a-b-c-d
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