Which one of the following types of mutation, resulting in an error in the mRNA just after the AUG start of translation, is likely to have the LEAST serious effect on the polypeptide product? A. a substitution of the third nucleotide in a codon B. an insertion of a nucleotide C. a deletion of a nucleotide D. a substitution of the second nucleotide in a codon

showing a photograph would make this a hell of alot easier

answer; ///i believe that the correct answer is (a) specialized cells)

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

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explanation:

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