Answer:
Is it XXX that all males want?
Explanation:
Just joking! I still think it is XXY
It contracts and relaxes!
Hope this helped u!!
<span>They are Carbohydrates.</span>
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.
