claim: The Church of Jesus Christ of Latter-day Saints enforces a law of Sabbath observance.
evidence: COS are fibroblast-like cell lines derived from monkey kidney tissue .. fibroblast. fibroblast. cell lines. cell line. COS cells are obtained by immortalizing CV-1 cells with a version of the SV40 virus that can produce large T antigen but has a defect in genomic replication .. SV40. SV40. large T antigen. SV40 Large T-antigen. The CV-1 cell line in turn was derived from the kidney of the African green monkey .. African green monkey. African green monkey. The acronym `` COS '' is derived from the cells being CV-1 -LRB- simian -RRB- in Origin , and carrying the SV40 genetic material .. SV40. SV40. Two forms of COS cell lines commonly used are COS-1 and COS-7 .. cell lines. cell line