<span>C. The cholesterol level of the participants in the study.</span>
The answer would be TIA
Transient Ischemic Attack or TIA is a <span>sudden deficient supply of blood to the brain lasting a short time. This will cause the loss or reduction of function of the affected brain area. The symptoms should disappear <24 hours to have it diagnosed as TIA. If the symptoms persist >24 hours, the diagnosis would be RIND or stroke.</span>
The answer is B. Genetic drift greatly affects small populations, but large populations can recover.
Answer:
Sigma factors bind to the promoter region of a particular gene and facilitating the binding of RNA Polymerase to the promoter region (formation of the RNA polymerase holoenzyme complex) in order initiate transcription of the gene.
Put simply - Helps RNA Polymerase do it's job.