Some proteins are composed of two or more polypeptides. Suppose t...

Question

Some proteins are composed of two or more polypeptides. Suppose the DNA template strand sequence 3′-TACGTAGGCTAACGGAGTAAGCTAACT-5′ produces a polypeptide that joins in pairs to form a functional protein.

What is the amino acid sequence of the polypeptide produced from this sequence?

Accepted Answer

Hey, everyone. Let's take a look at this question together in pro Caros stop codons are recognized by release factors which are proteins that bind to the ribosome and promote the release of the Nason protein chain. The presence of a stop codon in the M R N A triggers the release of the ribosome and the termination of translation, which of the following base sequence is not a stop codon. Is it answer choice? A U A G answer choice B U G A, answer choice C U A A or answer choice D U C A. Let's work this problem out together to try to figure out which of the following base sequence is not a stop codon. So in the genetic code, there are only three stop codons and these three stop codons do not code for any amino acid, but instead send a signal to the ribosome to stop translation and release the completed protein. And the three stop codons are U A G U G A and U A A. And so looking at our answer choices, we can see we have U A G U G A and U A A which are each one of the three stop codons. However, answer choice, D U C A is not one of those three stop codons since it is not a stop Codon making answer choice D U C A, the correct answer since U C A is not a stop codon and answer choices A B and C are all one of the three stop codons which triggered the release of the ribosome and terminate translation. I hope you found this video to be helpful. Thank you and goodbye.

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Some proteins are composed of two or more polypeptides. Suppose the DNA template strand sequence 3′-TACGTAGGCTAACGGAGTAAGCTAACT-5′ produces a polypeptide that joins in pairs to form a functional protein. What is the amino acid sequence of the polypeptide produced from this sequence?