Provide the full forms of the following:
$1.$ $\text{DNA}$
$2.$ $\text{RNA}$
$3.$ $\text{hnRNA}$
$4.$ $\text{UTR}$

(N/A) $1.$ $\text{DNA}$: $\text{Deoxyribonucleic acid}$
$2.$ $\text{RNA}$: $\text{Ribonucleic acid}$
$3.$ $\text{hnRNA}$: $\text{Heterogeneous nuclear RNA}$
$4.$ $\text{UTR}$: $\text{Untranslated region}$