Multiplexing is reshaping how scientists think about PCR experiments, turning single-target workflows into powerful, multi-dimensional analyses.

In this Science Snapshot, we revisit standout moments from past episodes to explore how multiplexing is applied across research areas, from measuring interferon-related genes in lupus to analyzing complex microbial communities and detecting low-level donor-derived DNA.

Guests highlight both the opportunities and challenges, including assay design, probe optimization, and troubleshooting strategies. The episode also showcases how multiplexing enables entirely new applications, such as comparing chromosome ratios, assessing molecular integrity, and distinguishing functional mRNA from truncated byproducts. Whether using qPCR or digital PCR, multiplexing allows researchers to extract more information per sample, improve precision through multiple data points, and better reflect biological complexity. As platforms and chemistries continue to evolve, multiplexing is becoming more accessible, helping scientists move faster, conserve material, and focus more on interpreting results rather than optimizing reactions.

Visit the Absolute Gene-ius page to learn more about the guests, the hosts, and the science we explore. Discover the Applied Biosystems QuantStudio Digital and Real-Time PCR Systems powering real-world research across neuroscience, oncology, agriculture, and more.

In this episode, Fiona Connolly, former Platform Innovation and Automation Scientist at bit.bio, explains how deterministic programming replaces the traditional “pinball machine” model of stem cell differentiation with precise genetic instructions. By identifying the exact transcription factor combinations, the “cheat codes” that define specific cell fates, Fiona’s team engineers induced pluripotent stem cells (iPSCs) to reliably become neurons, oligodendrocyte-like cells, and other specialized types. She discusses how digital PCR enables accurate transgene copy number validation and multiplexed screening of hundreds of clones, while RNA-seq and qPCR confirm expression fingerprints. The result? Consistent, scalable, high-quality human cell models that accelerate disease research, particularly in areas like neurodegeneration and multiple sclerosis while reducing reliance on animal models.

In Career Corner, Fiona shares her journey from curious “why” kid to molecular biologist obsessed with CRISPR, robotics, and automation. Her advice: don’t over-optimize your career path. Stay pluripotent, explore interdisciplinary skills, embrace new tech, and let curiosity guide the way.

Visit the Absolute Gene-ius page to learn more about the guests, the hosts, and the science we explore. Discover the Applied Biosystems QuantStudio Digital and Real-Time PCR Systems powering real-world research across neuroscience, oncology, agriculture, and more.

Science doesn’t just advance through breakthroughs, it advances through mistakes. This Science Snapshot episode embraces a universal truth of research: if you haven’t messed something up in the lab, you probably haven’t been there very long. From chemical reactions gone wrong to experiments derailed by one small oversight, these stories are as relatable as they are unforgettable.

In this curated “best of” revisit, Absolute Gene-ius brings together candid lab-fail moments shared by past guests across multiple seasons. You’ll hear stories involving exothermic sodium hydroxide reactions, PCR screening disasters caused by a simple reagent mix-up, forgotten spike-ins during RNA-seq prep, accidental sequencing of human DNA instead of plant viruses, and even being locked inside a cold room on the first week in a new lab. Along the way, the episode highlights the science behind each mistake and the importance of lab safety while reinforcing an important message for scientists at every stage: failure is part of the process, and every mistake becomes a lesson worth remembering.

Visit the Absolute Gene-ius page to learn more about the guests, the hosts, and the science we explore. Discover the Applied Biosystems QuantStudio Digital and Real-Time PCR Systems powering real-world research across neuroscience, oncology, agriculture, and more.