What is the difference between a codon and an anticodon?

Question

Accepted Answer

Hello, Raymond. Our next question says which of the following statements most accurately describes the distinction between a codon and an anti codon. A, a codon is found on RN A and anticodon is found on DNA B A coon and anti codon or identical sequences that pair during translation C A codon is a sequence of three nucleotides on TRN A while an anticodon is a complementary sequence of three nucleotides on M RNA or D A codon is a sequence of three nucleotides on MRN A. One anticodon is a complementary sequence of three nucleotides on TRN A. Well, hopefully, we can recall and looking at these names that a codon and anticodon are complementary to each other three nucleotides complementary to three nucleotides. So that's going to zero SAN on choices C and D and we just have to remember what are they on? Well, if we think of DNA as carrying the genetic code and then MRN A bringing the message of that code to the machinery for protein synthesis. So that MRN A is bringing that message with the code like blueprints to the ribosome for the assembly of that protein that can help us to remember that the coon is on the MRN A. So it's carrying codons as if it were carrying a coded message. So our answer is going to be choice D that the coon is a sequence of three nucleotides on MRN A while the anti codon is a complimentary sequence of three nucleotides on TRN A. So we have the matching complementary sequence on Trnas that direct those TNRRNAS to bring the correct amino acids to be assembled into a peptide sequence. When we look at choice C, it has it backwards. So it has the code on being trn A while the anti codon is MRN A. So we'll just write backwards to be thorough. Let's look at A and B choice A says A coon is on RN A and an anti codon DNA. This is not correct. We do know that RN A pairs with a complementary sequence on DNA or more correctly. The RN A is synthesized to be complementary to the DNA. So it has that, you know, complementary matching, but we don't refer to that on codons. Instead, you would say that the DNA has a coding strand and a template strand where the coding strand being not the template is the same order, you'll say of bases as the MRE the template strand obviously used as a template. So it's complimentary to the MRN A and then choice B A code on anti code are identical sequences that pair during translation. Well, they do pair during translation but they are not identical, they are complementary. So that's why choice B is incorrect. So again, the correct description or the most accurate description of distinction between a codon and anticodon is choice D A codon is a sequence of three nucleotides on Mr A. While anticodon is a complementary sequence of three nucleotides on Tr A see you in the next video.

What is the difference between a codon and an anticodon?

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Key Concepts

Codon

Anticodon

Genetic Code