Let’s start with some basic biology: in the nucleus of a human cell, each DNA molecule is packed into a long thread called a chromosome. Most human cells contain 23 pairs of chromosomes, with one half ...
A new study finds that, in healthy women, some breast cells that otherwise appear normal may contain chromosome abnormalities typically associated with invasive breast cancer. The findings question ...
Chromosomes are cellular structures that contain the genetic material. A chromosome is comprised of a single DNA molecule that may be either circular or linear. The full complement of a cell s ...