Concept 36 Different genes are active in different kinds of cells.
Tom 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.
- Go to:
- Patrick Brown
Tom Sargent
- Part I: Theories on how organisms end up with differentiated cells.
- Part II: Theories on how organisms end up with differentiated cells.
- The cell as a micro-computer that can interpret signals for different responses.
- Sargent's gene library and comparisons with today's gene chips.
- Molecules that regulate development are similar in different organisms.
- Why use other animal models to study development?
DNA is packaged in a chromosome.
Higher cells incorporate an ancient chromosome.
Some DNA does not encode protein.
Some DNA can jump.
Genes can be turned on and off.
Genes can be moved between species.
DNA responds to signals from outside the cell.
Different genes are active in different kinds of cells.
Master genes control basic body plans.
Development balances cell growth and death.
A genome is an entire set of genes.
Living things share common genes.
DNA is only the beginning for understanding the human genome.