Question

which code specifies the same amino acid as UAU

Answer 1

\(\Huge\color{gold}{\star\star\star\star\star\star\hspace{7pt}}\LARGE\tt\color{orangered}{Hey\;there,}\hspace{2pt}\Huge\color{gold}{\star\star\star\star\star\star\star\star}\)\(\Huge\hspace{15pt}\tt\Huge\;\color{Blue}{welcome\;to\;openstudy!}\)\(\Huge\color{gold}{\star\hspace{1pt}\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star}\)

What you got there is called a codon.
To find out for which amino acid this codon codes, look in the codon table i added to this post.
In your case, the U (uracil) is your first base, A (adenine) the second and U the third.
When you find the amino acid, look in the table if another codon also codes for this amino acid. That codon is your answer.
\(\Huge\ddot\smile\)