Exam Questions

[MisterTransistor]

Does the start codon code (AUG) in translation code for methionine at the beginning of the polypeptide? If so, would that mean methionine is present in all polypeptides?

Also, does anyone have an exam definition for cultural evolution?

[Russ]

Bear in mind that whilst it's always first, it can be cleaved out as part of an intron and post translational processing etc.

[MisterTransistor]

So does that mean it is actually coded for at beginning?

[Daenerys Targaryen]

I think it's only needed to initiate the transcription process?

[Jenny_2108]

Does the start codon code (AUG) in translation code for methionine at the beginning of the polypeptide? If so, would that mean methionine is present in all polypeptides?

Also, does anyone have an exam definition for cultural evolution?

For your 1st question: yes because it also initiates the translation process. If AUG is spliced out during post transcription modification, how can tRNA read the START codon and how the translation can begin? It also means methionine is present in polypeptides of eukaryote

For your 2nd question: cultural evolution occurs when persistent and common changes occur in human population as result of transmission of learned or imitated behaviours (not inherited). Eg: knowledge, customs, skills, etc,...

[MisterTransistor]

thanks