{ "nid": "73", "details": "\x3cspan class=\"title\"\x3eEvoBeaker: HIV Clock\x3c/span\x3e\x3cbr/\x3e\n\x3cspan class=\"description\"\x3eWhen did HIV swing from chimps to humans? Explores the use of RNA sequence changes as a way of measuring time, including discussion of synonymous vs. non-synonymous mutations for detecting selection. At the end, students estimate the age of HIV-1.\r\n\x3c/span\x3e\x3cbr/\x3e\n\x3cbr/\x3e\n\x3cstrong\x3eLevel\x3c/strong\x3e: Advanced\x3cbr/\x3e\n\x3cstrong\x3eKey Concepts\x3c/strong\x3e: Molecular clocks; Neutral evolution\x3cbr/\x3e\n\x3cstrong\x3eCourses\x3c/strong\x3e: Evolution; Population Genetics\x3cbr/\x3e\n          \x3cbr/\x3e\x3ca href=\"/search_result_details/brief/73\" class=\"node_brief\"\x3eRead less\x3c/a\x3e        \x3cbr/\x3e\x3ca href=\"/cart/add/73?dest=search_result_details%2F73\x26amp;dest_query=\"\x3e + Add to course collection\x3c/a\x3e  \x3c/span\x3e \x3c!-- description --\x3e\n" }