Oxygen exists in two gaseous (dioxygen and ozone) and six solid allotropic modifications. An additional allotropic modification of oxygen, the cyclooctaoxygen,

Although it is well-accepted that drug addiction is a major public health concern, how we address it as a society continues to evolve as recent advances in the

Fully revised and updated for the seventh edition, this market-leading dictionary is the perfect guide for anyone studying biology, either at school or universi

Biological processes that replicate, preserve and use the genetic information encoded in DNA must operate in the context of chromatin, a highly organized comple