Nurturing Life Sciences
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#Unit 8. Inheritance Biology
Duplication- is a mutation in which part of the chromosome has been doubled.
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Reverse duplication- Duplicated segment is inverted.
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Displaced duplication- Duplicated segment is some distance from the original segment.
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Tandem duplication- Duplicated chromosome segment is adjacent to the original segment.
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In heterozygotes DUPLICATIONS- The pairing and synapsis of homologous regions require that one or both chromosomes loop and twist.
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EFFECTS OF CHROMOSOME DUPLICATIONS- Bar phenotype in Drosophila