Protein SynthesisATI TEAS 7 cheat sheet

DNA to RNA to protein

9 key facts 5 practice questions Reviewed Oct 2026

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Transcription

Happens in the nucleus
DNA is copied into mRNA
A → U in RNA (uracil replaces thymine)

Translation

Happens at the ribosome
mRNA is read in codons — three bases per amino acid
tRNA brings the matching amino acid

The Chain

DNA → mRNA → protein — the central dogma
A gene is the stretch of DNA coding for one protein

Start & Stop

AUG starts translation; stop codons end it

Key takeaway

DNA to RNA to protein

Before you read

Test yourself first: 5 questions

Question 1 of 5

Which gas do plants take in during photosynthesis?

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