Protein synthesis is the process in which cells make proteins

Protein synthesis is the process in which cells make proteins.

It occurs in two stages: transcription and translation.

Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus.

mRNA sends the "transcript" to the ribosomes where it can be translated or decoded.

Translation takes place in the cytoplasm of the cell.

Translation is the decoding of mRNA to determine what amino acids are needed to make a protein.

tRNA brings over the amino acids to build proteins.

Transcribe the DNA to mRNA

DNA = TAC ? GCG ? ACG ? TAA - TCG mRNA = AUG CGC UGC AUU AGC

DNA = CGC ? ATT ? CCC ? TAG- CAT mRNA = GCG UAA GGG AUC GUA

DNA = CGA? GTA? ACT? GGG- TCA mRNA = GCU CAU UGA CCC AGU

3 Types of RNA

? Messenger RNA (mRNA) copies DNA's code & carries it to the ribosome

? Transfer RNA (tRNA) takes amino acids to the ribosomes, where they can be joined into a chain

? Ribosomal RNA (rRNA) makes up parts of ribosomes

Messenger RNA (mRNA)

? Long Straight chain of Nucleotides

? Made in the Nucleus ? Copies DNA & leaves

through nuclear pores ? Contains the Nitrogen

Bases A, G, C, U ( no T )

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