The answer is carbon dioxide.
Hope this helps!!
ATG, CAT, AAA, CGT, GTG
adenine, thymine, guanine
cytosine, adenine, thymine
adenine
cytosine, guanine, thymine
guanine, thymine
for RNA, you’ll just do the opposite of what the DNA strand says..... so A pairs with T and C pairs with G
for the actual acids, you’ll just list the names of the RNA sequence, which could be adenine, thymine, guanine, or cytosine