This is a preview. Log in through your library . Journal Information Science, founded by Thomas A. Edison in 1880 and published by AAAS, today ranks as the world's largest circulation general science ...

Spermatozoa have a unique epigenetic signature, consisting of their DNA methylation profile, DNA-associated proteins, protamine 1:protamine 2 ratio, nucleosome distribution pattern, post-translational ...

Flatworms of the species Schmidtea polychroa do it quite differently. First, they are simultaneous hermaphrodites, meaning that every individual worm is both male and female during its entire lifespan ...