பல்வேறு செல் வகைகளில் வெவ்வேறு மரபணுக்கள் செயல்பட்டிருக்கும்.

Tom Sargent Patrick BrownTom Sargent is the chief research microbiologist in the Section on Vertebrate Development in the Laboratory of Molecular Genetics, National Institute of Child Health and Development, National Institutes of Health. Dr. Patrick Brown is Professor of Biochemistry at the School of Medicine in Stanford University.

Patrick Brown