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Remote Ready Biology Learning Activities has 50 remote-ready activities, which work for either your classroom or remote teaching.
Genetics and heart disease
Interesting intersection of biology, urban development, race. Some possible starting places. Remember to distinguish observations from "stories", and that you may want to try and create "less wrong" stories than those you read.
http://www.americanheart.org/presenter.jhtml?identifier=4610 (American Heart Association)
http://www.cdc.gov/genomics/public/famhix/faq.htm (Family History initiative, from the National Office of Public Health Genomics)
http://news.bbc.co.uk/1/hi/health/6615237.stm (BBC news report)
http://www.nytimes.com/2005/11/11/health/11heart.html (NY Times report)