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Proteins are made up of amino acids - Edexcel - GCSE Biology - Question 1 - 2013 - Paper 1

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Proteins are made up of amino acids. (a) The table shows the DNA bases that code for some of the amino acids found in proteins. DNA bases AAA AAC CAA TAC TTC Amin... show full transcript

Worked Solution & Example Answer:Proteins are made up of amino acids - Edexcel - GCSE Biology - Question 1 - 2013 - Paper 1

Step 1

State the order of amino acids coded for by this sequence of DNA.

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Answer

The sequence of DNA TACC AAT TC codes for the amino acids: met, val, lys. Therefore, the order is: met - val - lys.

Step 2

These amino acids will be joined together during protein synthesis. During which stage of protein synthesis will this take place?

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Answer

This process occurs during translation, where the ribosomes facilitate the joining of amino acids to form a protein.

Step 3

Complete the sentence by putting a cross (✗) in the box next to your answer. Amino acids are joined together

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Answer

D - at the ribosome

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