Polytene Chromosomes from Salivary Glands

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Students use this laboratory procedure to outline the mechanism by which salivary glands are removed and prepared so that the polytene chromosomes may be observed.Drosophila virilis is used instead of Drosophila melanogaster because D. virilis is much larger and it is easier to dissect and remove the salivary glands from the larvae of this species.

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Resource Details

Grade
9th - 12th
Subjects
Science
1 more...
Resource Type
Lesson Plans
Duration
45 mins
Instructional Strategy
Inquiry-Based Learning
Usage Permissions
Fine Print