{"product_id":"adenine-gold-vermeil","title":"adenine necklace | gold vermeil","description":"\u003ch2\u003eAdenine necklace | 18K gold vermeil\u003c\/h2\u003e\n\u003cp\u003eAdenine is the A in DNA, one of the four letters that spell out every gene. This adenine necklace in 18K gold vermeil is a gift for the molecular biologist or biochemist in your life, or for yourself, if you have spent years reading those letters.\u003c\/p\u003e\n\n\u003ch2 style=\"margin-top:2em;\"\u003eWho It's For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ea molecular biologist or geneticist, on the day she defends her PhD\u003c\/li\u003e\n\u003cli\u003ea biochemistry student, when her final exams are behind her\u003c\/li\u003e\n\u003cli\u003ea colleague who runs on coffee and knows exactly why it works\u003c\/li\u003e\n\u003cli\u003esomeone who wears the adenine-thymine earrings in gold vermeil and would like the necklace to go with them\u003c\/li\u003e\n\u003cli\u003eyourself, if gold is what you wear every day\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"margin-top:2em;\"\u003eWhy Coffee Keeps You Awake\u003c\/h2\u003e\n\u003cp\u003eAdenosine is adenine joined to a sugar, ribose. While you are awake, adenosine slowly builds up in the brain, and the more there is, the stronger the pull towards sleep. Nerve cells sense it through adenosine receptors. Caffeine fits into those same receptors without switching them on, so it blocks the signal. The adenosine is still there. The brain just can't hear it for a while. Once the caffeine wears off, the sleepiness returns. During sleep, adenosine levels fall, and the build-up starts over when you wake.\u003c\/p\u003e\n\n\u003ch2 style=\"margin-top:2em;\"\u003eExplore Related Molecules Jewelry\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sciencejewelry1824.shop\/products\/adenine\"\u003eadenine necklace | silver\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sciencejewelry1824.shop\/products\/adenine-thymine-earrings-gold-vermeil\"\u003eadenine - thymine earrings | gold vermeil\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sciencejewelry1824.shop\/products\/cytosine-guanine-18k-gold-plated\"\u003ecytosine - guanine necklace | gold vermeil\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sciencejewelry1824.shop\/products\/horizontal-dna-18k-gold-plated\"\u003eDNA necklace H | gold vermeil\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003csection class=\"product-faq\"\u003e\n\u003ch2 style=\"margin-top:2em;\"\u003eFAQ\u003c\/h2\u003e\n\n\u003ch3 style=\"margin-top:1.75em;\"\u003eHow big is the pendant, and what chain comes with it?\u003c\/h3\u003e\n\u003cp\u003eThe pendant is 21 mm (about 0.8 inches) wide, about the size of a US nickel and a little smaller than a 1-euro coin. It is attached to the chain at both sides, so it stays level, and sits just below the collarbone. The chain is 45 cm (17.7 inches) of gold vermeil with a lobster clasp and a 5 cm (2 inch) extender. 18K gold vermeil means 2.5 microns of 18K gold over solid sterling silver, nickel-free and hypoallergenic.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-top:1.75em;\"\u003eIs there a silver version?\u003c\/h3\u003e\n\u003cp\u003eYes. The adenine necklace also comes in sterling silver, at the same 21 mm. Choose the finish the recipient already wears: the design is the same in both. To go with it, the adenine-thymine earrings and the cytosine-guanine necklace also come in gold vermeil.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-top:1.75em;\"\u003eIs delivery free, and what if it isn't right?\u003c\/h3\u003e\n\u003cp\u003eYes. DHL Express delivers free in 1-5 business days worldwide, and we pay the import duties and taxes, so nothing is due at the door. It arrives in a ready-to-gift jewelry box and festive envelope. If it isn't right, our 30-day “Love It or Return It” policy applies.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-top:1.75em;\"\u003eWhy is it called adenine?\u003c\/h3\u003e\n\u003cp\u003eBecause it was first found in a gland. In 1885 the German biochemist Albrecht Kossel isolated a new base from pancreas tissue and named it after the Greek word for gland, adēn. His lab went on to identify thymine and cytosine as well, so three of the four letters in every DNA sequence trace back to his work. The fourth, guanine, already had a name: it was first found in guano. Kossel received the Nobel Prize in Physiology or Medicine in 1910.\u003c\/p\u003e\n\u003c\/section\u003e\n","brand":"sciencejewelry1824","offers":[{"title":"Default Title","offer_id":57028460478850,"sku":"NK0416-GV","price":180.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1411\/4806\/files\/adenine-gold-vermeil.png?v=1794385982","url":"https:\/\/sciencejewelry1824.shop\/products\/adenine-gold-vermeil","provider":"sciencejewelry1824","version":"1.0","type":"link"}