Tes Magnification News Today

>> greta: is a bag, generally like a knapsack or something, a gym bag, can it be sort of like a mop or sponge and absorb, like, dna particles so you could extract dna from it for a future comparison? is that possible? >> you can certainly extract dna as long as people handle it without gloves, and it picks up a record by where youve been by the dust it contains. the analogy you used at the outset was a sponge. absolutely its a sponge. thats why we examine clothing in these cases to figure out wh...