Question

which represents a strand of rna bases?
○ caaggtctc
○ aggttcaca
○ caaggucuc
○ tggaaactca

Explanation:

RNA (ribonucleic acid) uses the base uracil (U) instead of thymine (T) which is found in DNA. We check each option:

• "CAAGGTCTC" has T? No, wait, it has G, C, A but no U or T? Wait no, wait DNA has A, T, C, G; RNA has A, U, C, G. So look for U instead of T.
• "AGGTT CACA" has T (thymine), so DNA - like.
• "CAAGGUCUC" has U (uracil), so this is RNA - like.
• "TGGAACTCA" has T (thymine), so DNA - like.

So the option with U is the RNA strand.

Answer:

C. CAAGGUCUC