In germ cells found in indelible epigenetic modifications

In the DNA of germ cells detected methyl modifications that remain in place even in the complete erasure other such modifications. Probably, these methylation-resistant foci responsible for the distribution of epigenetic code offspring.It is known that stress, smoking, endured disease, famine impose on our DNA its mark. Imprint literally: we are talking about epigenetic modifications, when the sequence of the DNA is the same, and the activity of genes can change radically. (In fairness it should be noted that such modifications may occur not only at the DNA, but also to the histones - proteins Read more [...]
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Propiolactone

Propiolactone - Lactone oksipropilovoy acid - has bactericidal and sporicidal properties, many times the formaldehyde in their activity. Applied as a spray. Disinfection Indoor when infected vegetative form is achieved with a dose of the drug 6 g/m3 for 2 hours contact, infected spore forms of microorganisms - at a dose of 12 g/m3 for 6 hours. 1-2% solution of beta-propiolactone is used to sterilize the apparatus of extracorporeal circulation (artificial kidney, heart, and lungs) and various products from polymeric materials. For disinfection of gaseous ethylene oxide and used bromide methyl. Read more [...]
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