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You ask initially about the “sense” and “antisense” strands of DNA. These terms are explained in the Wikipedia reference entitled ‘Sense strand’. This states what you appear to be already aware of, that: “The sense strand is the strand of DNA that has the same sequence as the mRNA, which takes the antisense strand as its template during transcription…” ...


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I would add this as a comment to your question but do not have enough reputation. A simple look at Wikipedia (which is a very good source for general questions like these) would have provided you with an answer. I just did this to see how long it would take if I did not know the answer. It was about 20-30 seconds. Protein synthesis: Transcription In ...


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There are two general points that should be appreciated in relation to this question: Your statement that mitochondria “have prokaryotic ribosomes” is a misleading simplification. Although mitochondria and plastids are thought to be derived from eubacteria — and their ribosomes have some similarities in antibiotic sensitivity — the structures of their ...


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The endosymbiotic theory states that eukaryotic mitochondria were once freely-living bacteria that somehow migrated into the cell and began a symbiotic relationship. However, just because the mitochondria within human cells have prokaryotic origins, these are distant relationships that are exceedingly old. The ribosomes of current day bacteria (on which ...


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Oxytocin is produced by cleavage of the protein of the oxytocin/neurophysin I prepropeptide gene. The precursor peptide is cleaved by Proprotein-Convertase 1 . Mice lacking the gene which encodes for this enzyme have reduced levels of oxytocin. The final step in the biosynthesis of oxytocin is carried out by Peptidyl glycine alpha-amidating mono-oxygenase.


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You are correct in saying that Crick, in his Wobble Hypothesis, proposed that “the base on the third position of the codon and that on the anticodon need not be complementary”, but the “need not be” in your statement is a paraphrase of the “some” in Crick’s original statement: “It is suggested that while the standard base pairs may be used rather ...



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