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Select the two correct statement out of the four (I-IV) given below about Lac operon.
1. Glucose or galactose may bind with the repressor and inactivate it.
2. In the absence of lactose, the repressor binds with the operator region.
3. The z-gene codes for permease.
4. This was elucidated by Francois Jacob and Jacques Monod.
The correct statements are
Options:
1. Glucose or galactose may bind with the repressor and inactivate it.
2. In the absence of lactose, the repressor binds with the operator region.
3. The z-gene codes for permease.
4. This was elucidated by Francois Jacob and Jacques Monod.
The correct statements are
Solution:
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Verified Answer
The correct answer is:
II and IV
In prokaryotes, a hypothesis was given in 1961 to explain the protein synthesis regulation. This hypothesis was given by F Jacob and J Monod and for this awarded Nobel Prize in 1965. The hypothesis was known by the name operon model.
The operator gene is the segment of DNA, which exercise a control over transcription. In the absence of lactose, the repressor binds with the operator gene.
The operator gene is the segment of DNA, which exercise a control over transcription. In the absence of lactose, the repressor binds with the operator gene.
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