1. | transcriptional level (formation of the primary transcript) |
2. | processing level (regulation of splicing) |
3. | transport of mRNA from the nucleus to the cytoplasm |
4. | translational level |
I: | It is the metabolic, physiological, or environmental conditions that regulate the expression of genes. |
II: | The development and differentiation of embryos into adult organisms are also a result of the coordinated regulation of the expression of several sets of genes. |
1. | Only I | 2. | Only II |
3. | Both I and II | 4. | Neither I nor II |
Gene regulation in prokaryotes is carried out exclusively at the level of:
1. | Initiation of transcription |
2. | Post-transcriptional modifications |
3. | Translation |
4. | Post-translational modifications |
The lac operon is regarded as:
1. | Negative, Inducible | 2. | Negative, Repressible |
3. | Positive, Inducible | 4. | Positive, Repressible |