This two-slide tutorial describes how genetic switches, regulatory elements in DNA, control gene expression.
Genetic switches can turn genes on and off in different tissues. In this Click & Learn, students explore two examples: the regulation of the Pitx1 gene in stickleback fish, which affects body morphology, and the regulation of the “paintbrush” gene in Drosophila fruit flies, which affects wing pigmentation.
One 50-minute class period.
enhancer, regulation, regulatory switch, tissue-specific expression, transcription
AP Biology (2019)
IST-2.A, IST-2.C, IST-2.B, IST-2.D, IST-2.E, IST-3.F
IB Biology (2016)
Vision and Change (2009)
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