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Chromosome |
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| This photomicrograph shows a specialized type of giant chromosomes called polytene chromosomes. Polytene chromosomes occur in many species of two-winged flies. They are formed when the strands of DNA within normal chromosomes undergo numerous rounds of replication without separating from one another. | ||||||
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| London Scientific Films/Oxford Scientific Films | ||||||
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| Appears in these articles: | ||||||
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| Eukaryote; Heredity; Chromosome; Genetics | ||||||
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