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muscular dystrophy

What types of mutations cause more vs. less severe muscular dystrophy?

This analysis and discussion activity begins with a brief video presenting the anchoring phenomenon – a teenager who has Duchenne muscular dystrophy.

Then, students investigate the types of deletion mutation that cause the more severe Duchenne muscular dystrophy vs. the milder Becker muscular dystrophy. During this analysis, students review transcription and translation, learn how to use a codon wheel, and analyze the molecular effects of different types of deletion and point mutations.

Finally, students investigate X-linked recessive mutations to understand why almost all Duchenne muscular dystrophy patients are male.

The Student Handout is available in the first two attached files and as a Google doc designed for use in online instruction and distance learning. (For additional instructions, see, especially item 7.) The Teacher Notes, available in the last two attached files, provide instructional suggestions and background information and explain how this activity is aligned with the Next Generation Science Standards (NGSS).

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