Cell-free DNA (cfDNA)
Short DNA fragments (~166 bp) circulating extracellularly in body fluids, shed from apoptotic and necrotic cells. In plasma, predominantly hematopoietic; in pregnancy, includes 10-15% fetal cfDNA from ~10 weeks gestation.
Short DNA fragments (~166 bp) circulating extracellularly in body fluids, shed from apoptotic and necrotic cells. In plasma, predominantly hematopoietic; in pregnancy, includes 10-15% fetal cfDNA from ~10 weeks gestation.
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