BIOMOLECULES AND ENZYMES

BIOLOGY

PROTEINS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An ____ is a three-nucleotide sequence on a tRNA that is ____ to an ____ codon.
A
codon, complimentary, mRNA
B
anticodon, opposite, mRNA
C
anticodon, complimentary, mRNA
D
codon, opposite, tRNA
Explanation: 

Detailed explanation-1: -anticodon – a sequence of three nucleotides on a tRNA molecule that bond to a complementary sequence on an mRNA molecule. The anticodon sequence determines the amino acid that the tRNA carries.

Detailed explanation-2: -Anticodon An anticodon is a trinucleotide sequence located at one end of a transfer RNA (tRNA) molecule, which is complementary to a corresponding codon in a messenger RNA (mRNA) sequence.

Detailed explanation-3: -The tRNA anticodon 3-UAC-5 will pair with the mRNA codon.

Detailed explanation-4: -Each tRNA contains a set of three nucleotides called an anticodon. The anticodon of a given tRNA can bind to one or a few specific mRNA codons. The tRNA molecule also carries an amino acid: specifically, the one encoded by the codons that the tRNA binds.

Detailed explanation-5: -Each mRNA codon consists of three nucleotides that pair with the tRNA in the 5’ 3’. The corresponding tRNA anticodon loop includes three nucleotide positions complementary to the codon. Given a 5’ 3’ codon sequence, the complementarity of the tRNA anticodon is most easily seen in the anti-complementary direction.

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