Question

identify which molecule is dna and which is rna, and then label the parts of each molecule. labels: deoxyribose - phosphate backbone, hydrogen bonds between base pairs, purine bases, pyrimidine bases, rna; drop zones; reset all; dna

Explanation:

The molecule shown is DNA (double-stranded, with thymine (T) bases). The outer structure with phosphate (P) groups is the deoxyribose-phosphate backbone. The dotted lines connecting complementary bases are hydrogen bonds between base pairs. Purine bases are adenine (A) and guanine (G) (double-ring structures), while pyrimidine bases are cytosine (C) and thymine (T) (single-ring structures). RNA is not depicted here, as the shown molecule is DNA.

Answer:

• Bottom box (linked to the double helix): DNA
• Rightmost top drop zone (linked to phosphate backbone): Deoxyribose-phosphate backbone
• Middle top drop zone (linked to dotted lines): Hydrogen bonds between base pairs
• Left top drop zone (linked to C, T): Pyrimidine bases
• Bottom right drop zone (linked to A, G): Purine bases
• Unused label: RNA (does not match the shown molecule)