B) mitochondria
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Answer:
Explanation:
stimulus reception → sensory transduction → sensory perception → sensory adaptation.
Answer:fungi and bacteria
Explanation:
When you observe mutation in one allele you can see that the other one can functionate as usually and transfer the information to a cell showing that cell is able to produce enough CFTR proteine to functionate well. And you have two alleles with mutation the cell is no longer able to make <span>functional CFTR protein which leads to </span>disease.
The type of control is described by the response of the operon when no regulatory protein is extant. In the case of negative regulator, the genes in the operon are distinct unless they are switched off by a repressor protein. Therefore the operon will be turned on essential (the genes will be prcise) when the repressor in inactived. In the case of positive control, the genes are distinct only when an active regulator protein, an activator, is present, Thus the operon will be turned off when the positive regulatory protein is missing or inactivated.