The gene has mutation and is changed to the sequence below CCT ACG GCT AC what kind of mutation is this

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

What happens during the experiment stage of the scientific method

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.