published on: 2013-03-12 14:52:39
medicalschool: A nice video showing the transcription of DNA
time2bate: fucking hot… love having an audience
sexymert.tumblr.com/post/45190626246/
sexymert.tumblr.com/post/45191159260/
furrybarber: (via TumbleOn)
sexymert.tumblr.com/post/45191248840/