Approximately what proportion of the dna in the human genome codes for proteins or functional rna?

What do all macromolecules have in common with each other? oa. they all are formed from the same elements.ob. they all have major roles in cell membranesoc. they all act as catalysts in the body.od. they all have peptide bonds between carbon atoms.

How do you date a sample of rock that you suspect as being one of the earliest on earth

What is it called when lava when it erupts from the surface through volcanoes.