Nurturing Life Sciences
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#Unit 8. Inheritance Biology
Heterozygous for inversions also exhibit reduced recombination among genes located in the inverted region.
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In prophase I of meiosis, an inversion loop forms.
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In Paracentric inversion - a single crossover takes place in the inverted region an unusual structure results
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Dicentric bridge - Structure produced when the two centromeres of a dicentric chromatid are pulled toward opposite poles
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Recombination is also reduced within a pericentric inversion. No dicentric bridges or acentric fragments are produced.