Do you know of anything in the buffers/DNA sample that can cause bias in REPLI-g WGA?

Limitations on the number and type of genomic analyses that can be performed due to insufficient quantities of genomic DNA can be overcome by global amplification of all DNA within a sample (whole genome amplification). REPLI‑g Kits provide DNA polymerase, buffers and reagents for highly uniform whole genome amplification with minimal sequence bias and can be used with various starting materials, including genomic DNA, fresh or dried blood, buccal swabs, fresh or frozen tissue and cells. QIAGEN REPLI-g Kits are available in several different sizes and configurations which allows researchers to build the best workflow for their application and lab space. Typical REPLI-g yields range from approx. 7 µg to 40 µg of amplified DNA, depending on which kit and workflow is used. The REPLI-g Mini and Midi Kits offer a single tube workflow with higher yields of amplified DNA, while the REPLI-g UltraFast Kit enables highly uniform and accurate whole genome amplification in just 60–90 minutes. For high-throughput processing in 96-well format, the streamlined, room-temperature procedure of the REPLI-g Screening Kit enables straightforward liquid handling that requires just 20 minutes. The REPLI-g Screening kit is intended for rapid screening using a range of genotyping, PCR, sequencing or microarray assays.