<em>Hey There!!~</em>
<em>Your best answer choice is </em><em>B. Grams.</em>
<em>Hope This Helps!!~</em>

<span>A::T and G:::C is essential. The importance to the DNA structure is that prevents lose of genes and mis-formation of encoded products (protein and mRNA).</span>
A flow of exhaust gasses from a jet engine