The process of 'turning on the expression of genes' due to environmental conditions is called
पर्यावरणीय परिस्थितियों के कारण 'जीन की अभिव्यक्ति को सक्रिय करने' (turning on gene expression) की प्रक्रिया क्या कहलाती है?
Enzyme Induction:
- Induction is the process by which gene expression is turned on or activated in response to an environmental signal or specific substrate (termed an inducer). For example, the addition of lactose or IPTG induces transcription of the lac operon enzymes.
- Repression is the process where gene expression is turned off or silenced in response to a signal or co-repressor (e.g., tryptophan turning off the trp operon).
- Constitutive expression: Genes that are continuously transcribed at a constant rate regardless of environmental conditions (housekeeping genes).
Correct Answer: Option 2 (Induction).
विस्तृत व्याख्या:
Enzyme Induction (एंजाइम प्रेरण):
- Induction (प्रेरण) is the process by which gene expression is turned on or activated in response to an environmental signal or specific substrate (termed an inducer). For example, the addition of lactose or IPTG induces transcription of the lac operon enzymes.
- Repression (दमन) is the process where gene expression is turned off or silenced in response to a signal or co-repressor (e.g., tryptophan turning off the trp operon).
- Constitutive expression: Genes that are continuously transcribed at a constant rate regardless of environmental conditions (housekeeping genes).
Correct Answer: Option 2 (Induction).
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