HeLa cells were fixed and treated with or without DNAse for 60 mins at 37 °C. The cells were then stained with Cell Meter™ Fixed Cell and Tissue TUNEL Apoptosis Assay Kit. DNA strand breaks showed intense fluorescent staining in DNAse treated cells. The signal was acquired with fluorescence microscope using Violet filter set." fetchpriority="high" width="320" height="155.73333333333335" decoding="async" data-nimg="1" style="color:transparent;background-size:cover;background-position:50% 50%;background-repeat:no-repeat;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 320 155.73333333333335'%3E%3Cfilter id='b' color-interpolation-filters='sRGB'%3E%3CfeGaussianBlur stdDeviation='20'/%3E%3CfeColorMatrix values='1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 100 -1' result='s'/%3E%3CfeFlood x='0' y='0' width='100%25' height='100%25'/%3E%3CfeComposite operator='out' in='s'/%3E%3CfeComposite in2='SourceGraphic'/%3E%3CfeGaussianBlur stdDeviation='20'/%3E%3C/filter%3E%3Cimage width='100%25' height='100%25' x='0' y='0' preserveAspectRatio='none' style='filter: url(%23b);' href='data:image/gif;base64,R0lGODlhAQABAPAAAO/v7////yH5BAAAAAAALAAAAAABAAEAAAICRAEAOw=='/%3E%3C/svg%3E")" srcset="/_next/image?url=https%3A%2F%2Fimages.aatbio.com%2Fproducts%2Ffigures-and-data%2Fcell-meter-fixed-cell-and-tissue-tunel-apoptosis-assay-kit-blue-fluorescence%2Ffigure-for-cell-meter-fixed-cell-and-tissue-tunel-apoptosis-assay-kit-blue-fluorescence_MeLBH.jpg&w=384&q=75 1x, /_next/image?url=https%3A%2F%2Fimages.aatbio.com%2Fproducts%2Ffigures-and-data%2Fcell-meter-fixed-cell-and-tissue-tunel-apoptosis-assay-kit-blue-fluorescence%2Ffigure-for-cell-meter-fixed-cell-and-tissue-tunel-apoptosis-assay-kit-blue-fluorescence_MeLBH.jpg&w=640&q=75 2x" src="/_next/image?url=https%3A%2F%2Fimages.aatbio.com%2Fproducts%2Ffigures-and-data%2Fcell-meter-fixed-cell-and-tissue-tunel-apoptosis-assay-kit-blue-fluorescence%2Ffigure-for-cell-meter-fixed-cell-and-tissue-tunel-apoptosis-assay-kit-blue-fluorescence_MeLBH.jpg&w=640&q=75">