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Frequently asked questions

Our Scientific Applications Support team has assembled a list of frequently asked questions to help you find answers quickly. Filter using one or more categories to focus on specific topics, or use the search bar to perform a text search.

When calculating the Tm of my oligo, should I only use the bases which are complementary to my target or should I also include any sticky overhangs on the primer?

To determine the relative Tm of primers with non-complementary overhangs, only the complementary region should be taken into account. You can obtain the Tm using the free, online OligoAnalyzer tool found at

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