During what time period did the great dying occur

7-AAD/CFSE cell-mediated cytotoxicity assay employs a green fluorescent probe CFSE to label live target cells and a red fluorescent probe 7-AAD to label late apoptotic or necrotic target cells.

https://www.creative-bioarray.com/7-aad-cfse-cell-mediated-cytotoxicity-assay.htm

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.