for a couple of decades, biologists knew the nucleus contained dna and proteins. the prevailing opinion was that the genetic material was proteins, and not dna. the reason for this belief was that proteins are more complex than dna. what was the basis of this thinking?

Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.