Term
| What does it mean to say that a gene is being "expressed?" |
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Definition
| When a gene product is actively being transcribed and translated. |
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Term
| Why is gene expression regulated? |
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Definition
| Many proteins are needed only at specific times, locations or situations. Gene expression is regulated to produce the right proteins at the right times. |
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Term
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Definition
| Some proteins are needed at all times. These genes are expressed at all times. |
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Term
| Why are weak promoters better for precise regulation? |
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Definition
| They can be "tuned up" easily, they are not wasteful, even if other proteins are temporarily unavailable. |
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Term
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Definition
| A group of genes whose expression is under the control of a common promoter. |
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Term
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Definition
| Cleaves the lactose glycosidic bond. [Lac Z] |
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Term
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Definition
| A lactose-import channel. [Lac Y] |
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Term
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Definition
| A non-necessary function. |
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Term
| Lac Operon On/Off with Glucose Only? |
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Definition
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Term
| Lac Operon On/Off with Lactose Only? |
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Definition
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Term
| Lac Operon On/Off with Glucose and Lactose? |
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Definition
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Term
| When cellular glucose levels rise... |
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Definition
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Term
| When cellular glucose is lower... |
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Definition
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Term
| What will the output of lactose-usage proteins be with high glucose and low lactose? |
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Definition
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Term
| What will the output of lactose-usage proteins be with high glucose and high lactose? |
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Definition
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Term
| What will the output of lactose-usage proteins be with low glucose and high lactose? |
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Definition
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