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Biology / Unit 6   Bio 1253 short lesson, about 20 seconds

The Wobble Hypothesis

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The idea

The wobble hypothesis holds that a tRNA's third anticodon position can pair loosely with more than one codon base, letting fewer tRNAs read a degenerate code.

In practice

One tRNA's wobble position can pair with either of two codons that differ only in their third base.

Where people slip

Wobble pairing is restricted to a codon's third position — the first two positions must still pair exactly.

Your place on the trail

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