each A in one strand always pairs with a T in the other strand, and each C always pairs with a G. The double-stranded DNA that results from this pattern of bonding looks much like a ladder with ...

DNA molecules are large and complex. They carry the genetic code that determines the characteristics of a living organism. The diagram shows the relationship between the cell, its nucleus ...

By discovering new ways to manipulate matter at the atomic and molecular levels, advances in nanotechnology are paving the way for innovations in medicine, electronics, materials science and ...

This diagram depicts the chemical structure of pyrimidine ... It interferes with DNA synthesis by incorporating into the growing DNA strand, leading to the termination of DNA replication and cell ...