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Rebuilding of telomere length in cloned cattle. Chemiluminescent detection of TRF lengths of RsaI/HindfI-digested DNA from cells and tissues of cloned fetuses and calves compared with their donor cells from a 9-year-old Charolais female (A) and from a 21-year-old Brahman bull (B). Mean TRF lengths were measured in DNA samples from adult (A) donor cells and samples from cloned (NT) fetal (F) and calf (C) animals. Molecular weight (MW) markers (lane M) are displayed in kb.
