True or false? guanine and uracil are examples of nitrogenous bases.

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?

Explain why autonomous underwater explorers (aue) will provide entirely new kinds of information about ocean processes

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.