4which of the following supports the claim that the environment can affect genetic traits ?

5 feather pillow and a bird was traced to a single gene. six variations of feather color could be observed across the bird population. which of the following could account for so many variations?

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.