TY - RPRT TI - Directional purine pyrimidine asymmetry in CRISPR repeats facilitates spacer acquisition AU - Barik, S. AU - Sahu, P. AU - Ghosh, K. AU - Subramanian, H. PY - 2026 DO - 10.64898/2026.07.20.739571 UR - https://www.biorxiv.org/content/10.64898/2026.07.20.739571v1 ID - 10.64898/2026.07.20.739571 ER -