Ribosomes and protein synthesis

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8 Terms

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Small subunit

Reads genetic info from mRNA

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Large subunit

Makes peptide bonds between amino acids to form a polypeptide chain.

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What is a ribosome made of?

rRNA molecules and proteins

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Ribosome has how many binding sites for RNA?

4 (one for mRNA and three for tRNA called A, P, E.)

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Where does translation occur?

In the cytosol on ribosome.

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In translation what factors drive the reaction?

Elongation factors using GTP hydrolysis.

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What factor binds to ribosome to terminate translation and release polypeptide.

Release factor.

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Where is DNA transcribed?

DNA is transcribed into mRNA in the nucleus.