Structure and function In the human body, cells dwell within three-dimensional networks of proteins and other macromolecules collectively known as the extracellular matrix (ECM). “This is the ...

Each cell with a nucleus contains chromosomes, which are made from DNA Human body cells each contain 23 pairs of chromosomes, half of which are from each parent. So, human gametes (eggs and sperm ...

Although scientists can learn a lot from cell culture and animal models, they cannot truly substitute for all parts of the ...

Researchers have now uncovered the 3D structure of the RNA enzyme SAMURI ... RNA molecules are an integral part of the human body: In cells, they ensure the transfer of genetic information ...