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 Gene expression involves transcribing a gene's DNA into molecules of mRNA. These molecules then migrate from a cell's nucleus into the cytoplasm, where they serve as blueprints for protein construction. Robert Singer, Ph.D., codirector of the Gruss Lipper Biophotonics Center and professor and cochair of anatomy and structural biology, was senior author of the paper. Working with his colleagues, he generated a transgenic mouse in which genes coding for the structural protein beta actin would, when expressed, yield fluorescently labeled mRNA. Beta actin mRNA is a highly expressed molecule found in all mammalian tissues. |
1. StumbleUpon The granddaddy of discovering random cool stuff online, StumbleUpon will celebrate its 10th anniversary later this year — but its mobile app is less than a year old. On the web, its eight million users have spent the last decade recommending (or disliking) millions of webpages with a thumbs up / thumbs down system on a specially installed browser bar. The StumbleUpon engine then passes on recommendations from users whose interests seem similar to yours. Hit the Stumble button and you’ll get a random page that the engine thinks you’ll like. The more you like or dislike its recommendations, the more these random pages will surprise and delight. Device : iPhone , iPad , Android 2. iReddit Reddit is a self-described social news website where users vote for their favorite stories, pictures or posts from other users, then argue vehemently over their meaning in the comments section. In recent years, it has gained readers as its competitor Digg has lost them. ...
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