Consider the following genotype in a somatic cell. What will be the result of an

Question

Consider the following genotype in a somatic cell. What will be the result of an exchange (i.e., breakage and repair event superficially analogous to recombination in meiosis) occurring between genes H and R, when the somatic cell then divides in mitosis?

2. Consider the following genotype in a somatic cell. What will be the result of an exchange (i.e, breakage and repair event superficially analogous to recombination in meiosis) occurring between genes H and R, when the somatic cell then divides in mitosis? h R

Explanation / Answer

Single spot mosaic arise from recombination between the two genes. When the mitotic recombination occurs between H and R, single spot mosaic will be formed as the centromere is not involved. If the centromere was involved, recombination between the centromere and gene pair will result in twin spot mosaic. The frequency of the mosaic spot is dependent on the cytologic distance from the centromere, regardless of the type of the chromatin present in that chromosome section.

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