Name
Class
Date
Biology/Life Sciences Standards: Genetics
Amino acids
IRNA
Growing protein
III - Anticodon
UGU
GU
mRNA
CCA (ACA) CÁC CUU CCG GGA CCU CÁC CCC CUA AGU
Codon
Fiqure 2-10 Translation A protein molecule is synthesized on a ribosome
when tRNA translates the genetic information in mRNA.
Review Questions
30 Genetic information is contained
in code words. Each code word con-
sists of three
A amino acids.
B nitrogen bases.
C codons.
D anticodons.
Which statement is true about
TRNA?
A It transcribes genetic informa-
tion in DNA.
B It translates genetic information
in mRNA
C It transfers amino acids to the
nucleus.
D It transfers mRNA to a
ribosome.
311
Where is the genetic information in
mRNA translated into a sequence
of amino acids?
A in the nucleus
B inside a DNA molecule
con a ribosome
D in a complementary base

Translation is the final step in the central dogma of molecular biology that involves the decoding and translation of the codons on mRNA to amino acid sequence.
The genetic code is a scheme of 64 triplet nitrogeneous base codons that code for 20 amino acids.
A tRNA molecule reads this codon sequence with the help of complementary anticodons and helps transport an amino acid to the ribosome for addition to the growing polypeptide chain.
Protein synthesis occurs in the rough endoplasmic reticulum (RER) in the cytoplasm.