App definition, an application, typically a small, specialized program downloaded onto mobile devices: the best GPS apps for your iPhone. See more.
Anticodon. An anticodon is a tri nucleotide sequence complement ary to that of a corresponding codon in a messenger RNA (mRNA) sequence. An anticodon is found at one end of a transfer RNA (tRNA) molecule. anticodon the complement ary codon present on a tRNA molecule.
Note that these nucleotides on the tRNA do not make up a codon. They are, in fact, the exact opposite - an anticodon. The anticodon is a perfect complementary match to a codon. So, if the codon for serine is AGC, then the anticodon for serine is UCG. The tRNA that contains the anticodon UCG will also be the tRNA that attaches to a serine amino acid.