Will reward 50 points, 5-star rating, and brainiest When a child is born with down syndrome, when did the mutation occur? A. During Mitosis B. During Meiosis C. During Translation D. Transcription

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.