Answer:
D.) repressor DNA-binding site mutation
Explanation:
lacl prevents the repressor polypeptide is a mutant that prevent operon from binding lactose, and thus will bind to the operator and be non-inducible.. This mutant will represses the lac operon whether lactose is present or not and the lac operon will not be expressed. It is also called“super-supperesor".
The lacI locus – One type of mutant allele of lacI (callled I-) prevents the production of a repressor polypeptide or produces a polypeptide that will not allow to bind to the operator sequence.
This is also a constitutive expresser of the lac operon because absence of repressor binding permits transcription.
Answer:
The provided question is incomplete as there is no option available however the generalized answer would be -
The correct answer would be - For treating the global symptoms related to the allergies, it is known as that the inhaled nasal steroids are far more effective than oral medications.
Explanation:
Nasal steroids are the steroids that relieve congestion problems by decreasing the inflammation in the nose of an individual. These are then inhaled by the nose which directly sprays into nasal passages.
In comparatively the oral steroids take time to show their impact on the individual and even the impact is considered not as effective as the inhaled nasal sprays.
Thus, the correct answer is - For treating the global symptoms related to the allergies, it is known that inhaled nasal steroids are far more effective than oral medications.
Lactobacillus is a non spore forming bacteria
Answer: The protein will be a substrate for protein kinases
Explanation: Kinases are a class of enzymes that catalyze the addition of a phosphoryl group to a protein. The kinase will add a phosphoryl group to the protein at its serine/ threonine residues.
