QUESTION IMAGE
Question
complete the table to compare the nitrogenous bases found in dna and r
| dna | rna | |
|---|---|---|
| contains guanine | ||
| contains cytosine | ||
| contains thymine | ||
| contains adenine |
Step1: Recall DNA/RNA base differences
DNA bases: A, T, C, G; RNA bases: A, U, C, G.
Step2: Mark "contains uracil"
RNA has U, DNA doesn't. So DNA: uncheck, RNA: check.
Step3: Mark "contains guanine"
Both DNA and RNA have G. So both: check.
Step4: Mark "contains cytosine"
Both DNA and RNA have C. So both: check.
Step5: Mark "contains thymine"
DNA has T, RNA doesn't. So DNA: check, RNA: uncheck.
Step6: Mark "contains adenine"
Both DNA and RNA have A. So both: check.
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| DNA | RNA | |
|---|---|---|
| contains guanine | $\blacksquare$ (check) | $\blacksquare$ (check) |
| contains cytosine | $\blacksquare$ (check) | $\blacksquare$ (check) |
| contains thymine | $\blacksquare$ (check) | $\square$ (uncheck) |
| contains adenine | $\blacksquare$ (check) | $\blacksquare$ (check) |