The answer would be B) Nucleic acids I hope this helped ^^
The main 3 things that are found in your blood are waste (leftover food), Carbon Dioxide (what you breathe out), and ammonia
Bacteria
Amphibians
Reptiles
Mammals
My answer is the Vacoules, but I might be wrong.
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.
