When Jacobson was still pregnant with Verity, a common phrase she heard from doctors was that trisomy 18 was “incompatible ...

Human biological sex is determined by the sex chromosomes X and Y. In most cases, females possess two X chromosomes, while males have one X and one Y. However, there is some evidence that the Y ...

She's also a tough little girl. She has number of medical conditions stemming from a large deletion on her 18th chromosome and Pitt-Hopkins syndrome. As a result, she has respiratory, heart ...

Most prokaryotes carry a small amount of genetic material in the form of a single molecule, or chromosome, of circular DNA. The DNA in prokaryotes is contained in a central area of the cell called ...

A chromosome is a single, long molecule of DNA. These highly organized structures store genetic information in living organisms. Small sections of the chromosome, called genes, code for the RNA ...