Select the true statement.

rna is mostly single-stranded; dna is always double-stranded.
rna and dna usually have identical nitrogenous bases.
several types of dna regulate protein synthesis.

The first statement

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

it creates acid rain