17. How are amino acids
brought to the cellular site
where translation takes place?
What is an anticodon?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Amino acids are to ribosomes
by molecules known as
RNA, or tRNA. tRNA associated to
specific amino acid by a special
of three nucleotides a
mRNA codon in the ribosome.
sequence in the is known as
. The tRNA anticodon be
complementary to mRNA codon to
it binds, according the rule AU,
. The ribosome then along
the mRNA (a process called
) to expose the
codon to the of other tRNA.
amino acids corresponding
neighboring codons bind peptide
bond the tRNA is liberated.