In prokaryotes, the predominant site for control of gene
expression is the
| 1. | transcription initiation |
| 2. | processing level |
| 3. | transport of mRNA |
| 4. | translational level |
| 1. | Genes completely determine traits regardless of environment |
| 2. | Environment overrides genetic control in all cases |
| 3. | Genes provide potential while environment influences actual expression |
| 4. | Gene-environment interaction is insignificant in trait determination |
Which of the following is an example of genetic regulation?
| 1. | E. coli increases expression of beta-galactosidase in response to lactose in the growth medium. |
| 2. | The cells in a developing fetus synthesize different proteins depending on the stage in development. |
| 3. | Brain cells produce a different set of proteins than muscle cells. |
| 4. | All of the above are examples of genetic regulation. |