A Holliday intermediate is formed between two chromosomes at a point between two genes, A and B, as shown below. The two chromosomes have different alleles of the two genes ( A and a ; B and b ). Where would the Holliday intermediate have to be cleaved (points X and/or Y ) to generate a chromosome with an AB genotype?

Points Y
Points X and Y
Points X

A Holliday intermediate is formed between two chromosomes at a point between two genes A and B as shown below The two chromosomes have different alleles of the class=


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