Although there is only one human genome sequence, different genes are expressed in many different cell types and tissues, as well as in different developmental stages or diseases. The structure of ...

Gene expression profiling is the determination of the pattern of genes expressed, at the level of transcription, under specific circumstances or in a specific cell to give a global picture of cellular ...

Troy Segal is an editor and writer. She has 20+ years of experience covering personal finance, wealth management, and business news. Lea Uradu, J.D., is a Maryland state registered tax preparer, state ...

Clay Halton was a Business Editor at Investopedia and has been working in the finance publishing field for more than five years. He also writes and edits personal finance content, with a focus on ...

Since Philadelphia is arranged on a grid system, the mostly one-way roads are easy to navigate. Helpful maps are posted along street corners across the city – watch for the "Walk! Philadelphia" signs ...

J.K. Rowling's name has become synonymous with her legendary "Harry Potter" book series, but she is also famous for something more controversial: her public and often contentious views on the ...

China pledged to preserve much of what makes Hong Kong unique when the former British colony was handed over in 1997. Beijing said it would give Hong Kong fifty years to keep its capitalist system and ...