Question

complete the table to compare the nitrogenous bases found in dna and rna. the table has rows: contains uracil, contains adenine, contains thymine, contains cytosine, contains guanine; columns: dna, rna, with checkboxes for each cell.

Explanation:

To complete the table, we use the knowledge of nitrogenous bases in DNA and RNA:

• Uracil: RNA contains uracil (U), DNA does not (DNA has thymine instead). So for "contains uracil", DNA: no check, RNA: check.
• Adenine: Both DNA and RNA contain adenine (A). So for "contains adenine", DNA: check, RNA: check.
• Thymine: DNA contains thymine (T), RNA does not (RNA has uracil instead). So for "contains thymine", DNA: check, RNA: no check.
• Cytosine: Both DNA and RNA contain cytosine (C). So for "contains cytosine", DNA: check, RNA: check.
• Guanine: Both DNA and RNA contain guanine (G). So for "contains guanine", DNA: check, RNA: check.

We can represent the checks as follows (using "✓" for check and " " for no check):

	DNA	RNA
contains adenine	✓	✓
contains thymine	✓
contains cytosine	✓	✓
contains guanine	✓	✓

Answer:

	DNA	RNA
contains adenine	✓	✓
contains thymine	✓
contains cytosine	✓	✓
contains guanine	✓	✓