Question

which structural component is found in dna but not in rna? ribose deoxyribose phosphate group nitrogenous base

Explanation:

DNA (deoxyribonucleic acid) has deoxyribose as its sugar component. RNA (ribonucleic acid) has ribose. Both have phosphate groups and nitrogenous bases (though there are some differences in nitrogenous bases, but the key structural sugar difference is deoxyribose vs ribose). Deoxyribose has one less oxygen atom compared to ribose.

Answer:

deoxyribose