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TECHVAULT > DECODED ARCHIVE > CORE CONCEPTS

Modification Highlight: When dT is Required For Modification Attachment

Certain modifications require a dT base in the oligonucleotide sequence in order to be added.

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Exon Numbering—Not As Easy As 1, 2, 3...

Exon numbering and location data can differ across various software tools, including with NCBI's gene database. For example, exons within alternatively spliced transcripts are sometimes individually numbered, with no consistent gene-based numbering system across these transcripts for identifying exons. Here we describe how IDT exon location information gives each exon a unique number and how that compares with the NCBI naming system.

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When Designing PCR Assays, Always Check For SNPs

With the increasing identification of SNPs, it is critical to check whether they underlie your primer or probe sequences, which could compromise PCR efficiency.

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How to Avoid False Positives in PCR and What to Do If You Get Them

Causes of false positives in the Negative Template Control sample during PCR, and suggestions for preventing them.

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Using Antisense Technologies to Modulate Noncoding RNA Function

Useful modifications and design considerations for effective antisense oligonucleotides.

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