He flowchart below shows the pathway a protein hormone takes from the site of synthesis to its transport out of the cell. Ribosomes → rough endoplasmic reticulum → vesicle → Golgi apparatus → vesicle → outside the cell

a) Identify where exocytosis begins in this pathway.
How is the protein transported out of the cell?

According to the rna world hypothesis, rna acted as the genetic material and catalyzed reactions in ancient cells. what conclusion can you draw from this?               a.  this implies that dna and proteins aren't essential in cells today.    b.  this implies that rna can catalyze any chemical reaction that enzymes catalyze.    c.  this implies that if a cell has a problem with its dna, its rna can compensate for the damaged dna.    d.  this implies that dna and proteins evolved after rna.