> For the complete documentation index, see [llms.txt](https://knowledge.illumina.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://knowledge.illumina.com/library-preparation/general/library-preparation-general-faq-list.md).

# FAQ

Library Preparation > General > FAQ

* [Are the Illumina RNA Index Anchors the same in every well of the plate?](/library-preparation/general/library-preparation-general-faq-list/000005793.md)
* [BLT PF reagent handling for the Illumina DNA PCR Free workflow questions](/library-preparation/general/library-preparation-general-faq-list/000003454.md)
* [BLT PF usage FAQ for Illumina DNA PCR Free](/library-preparation/general/library-preparation-general-faq-list/000003453.md)
* [Can RSB be used as a substitute for RSB + Tween when sequencing on the NextSeq 1000/2000?](/library-preparation/general/library-preparation-general-faq-list/000005890.md)
* [Can samples be sent to Illumina for sequencing; does Illumina offer sequencing as a service?](/library-preparation/general/library-preparation-general-faq-list/000005495.md)
* [Consumable FAQ for the Illumina 5 Base Whole Genome Sequencing (WGS) and Enrichment kits](/library-preparation/general/library-preparation-general-faq-list/000009940.md)
* [Consumables and Equipment FAQ for the TruPath Genome assay](/library-preparation/general/library-preparation-general-faq-list/000010166.md)
* [Control (GDMC and SFMC) FAQ for the Illumina 5 Base Whole Genome Sequencing and Enrichment kits](/library-preparation/general/library-preparation-general-faq-list/000009943.md)
* [Design and coverage of the Respiratory Virus Oligos Panel v2 (RVOP v2)](/library-preparation/general/library-preparation-general-faq-list/000003422.md)
* [Does library loading differ between MiSeq Micro and Nano flow cells?](/library-preparation/general/library-preparation-general-faq-list/000005606.md)
* [FAQs on the Illumina DNA Prep, (M) Tagmentation Library Preparation protocol](/library-preparation/general/library-preparation-general-faq-list/000001260.md)
* [Frequently Asked Questions for Illumina FFPE DNA Prep with Exome 2.5 Enrichment](/library-preparation/general/library-preparation-general-faq-list/000009485.md)
* [General FAQ for Illumina Rapid RNA kits](/library-preparation/general/library-preparation-general-faq-list/000010209.md)
* [General FAQ for the Illumina 5 Base WGS and Enrichment kits](/library-preparation/general/library-preparation-general-faq-list/000009939.md)
* [General workflow FAQ for the Illumina 5 Base WGS and Enrichment kits](/library-preparation/general/library-preparation-general-faq-list/000009946.md)
* [How many samples can be prepared with the Illumina Exome 2.5 panel?](/library-preparation/general/library-preparation-general-faq-list/000009598.md)
* [How much PhiX to spike in for well balanced, base diverse libraries?](/library-preparation/general/library-preparation-general-faq-list/000006972.md)
* [How to pool Illumina DNA Prep with Exome 2.5 libraries on the NextSeq series and NovaSeq 6000?](/library-preparation/general/library-preparation-general-faq-list/000006988.md)
* [How to stagger sequences or heterogeneity spacers introduce diversity for amplicon libraries?](/library-preparation/general/library-preparation-general-faq-list/000005581.md)
* [Hybridization Buffer (HT1) and Resuspension Buffer (RSB) alternatives and purchasing availability](/library-preparation/general/library-preparation-general-faq-list/000005040.md)
* [IDT for Illumina TruSeq Unique Dual (UD) Index kit FAQs for kit configurations and usage](/library-preparation/general/library-preparation-general-faq-list/000001878.md)
* [Information about the TruSeq index adapter plate fixture](/library-preparation/general/library-preparation-general-faq-list/000005724.md)
* [Information and protocol for the Illumina 16S Metagenomics Sequencing Library Preparation workflow](/library-preparation/general/library-preparation-general-faq-list/000005774.md)
* [Information on the Illumina DNA/RNA UD Indexes](/library-preparation/general/library-preparation-general-faq-list/000008384.md)
* [Input recommendations for Illumina Rapid RNA Kits](/library-preparation/general/library-preparation-general-faq-list/000010212.md)
* [Kits, consumables, and reagent stability FAQ for Illumina Rapid RNA Kits](/library-preparation/general/library-preparation-general-faq-list/000010210.md)
* [Link to the Sequencing Methods Explorer](/library-preparation/general/library-preparation-general-faq-list/000006080.md)
* [Plate layout for the Illumina DNA/RNA UD Indexes (v3)](/library-preparation/general/library-preparation-general-faq-list/000008364.md)
* [Product page and support page links for Illumina DNA Prep with Enrichment (S) Tagmentation](/library-preparation/general/library-preparation-general-faq-list/000005054.md)
* [Product page and support page links for Illumina RNA Prep with Enrichment, (L) Tagmentation](/library-preparation/general/library-preparation-general-faq-list/000005216.md)
* [QC steps FAQ for Illumina Rapid RNA Kits](/library-preparation/general/library-preparation-general-faq-list/000010214.md)
* [Sequences and plate positions for the Illumina Unique Dual Indexes, LT (48 Indexes, 48 Samples)](/library-preparation/general/library-preparation-general-faq-list/000008386.md)
* [Sequencing and run setup FAQ for Illumina Rapid RNA Kits](/library-preparation/general/library-preparation-general-faq-list/000010215.md)
* [Should indexes be read when sequencing a single library?](/library-preparation/general/library-preparation-general-faq-list/000006091.md)
* [What do (S), (M), and (L) mean in Illumina library prep kit names?](/library-preparation/general/library-preparation-general-faq-list/000006971.md)
* [What is a Single Read (SR), Paired End (PE) reads, and read requirements for sequencing?](/library-preparation/general/library-preparation-general-faq-list/000009547.md)
* [What is the concentration of Illumina adapters and primers?](/library-preparation/general/library-preparation-general-faq-list/000005459.md)
* [What is the difference between a single and dual indexed library?](/library-preparation/general/library-preparation-general-faq-list/000005669.md)
* [What is the minimum library size that can be sequenced?](/library-preparation/general/library-preparation-general-faq-list/000006540.md)
* [Where are the sequences and plate positions of Illumina indexes?](/library-preparation/general/library-preparation-general-faq-list/000007378.md)
* [Which TruSeq index kits come in plate or tube format?](/library-preparation/general/library-preparation-general-faq-list/000002332.md)
* [Which computer operating systems are compatible with Illumina Experiment Manager (IEM)?](/library-preparation/general/library-preparation-general-faq-list/000005722.md)
* [Workflow FAQ for Illumina Rapid RNA Kits](/library-preparation/general/library-preparation-general-faq-list/000010213.md)
* [Workflow and Sequencing recommendations FAQ for TruPath Genome](/library-preparation/general/library-preparation-general-faq-list/000010168.md)


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