Question 19 What is always the first amino acid incorporated at the N-terminus o

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Question 19 What is always the first amino acid incorporated at the N-terminus of a nascent polypeptide chain? https://d2i.rose.edu/d2Limsiquizzing/user/attempt/quiz-start-frame.d2l?ou=1360828isprv-8drc-0&qi-200802;&cfq1-0;&dnb-0; 5/6/2018 Quiz Submissions-CH 11 HW Quiz-BIOL 2 103 #2787 (Online)I Cell Biology-Rose State College 1) methionine 2) asparagine 3) cystine ) cysteine Question 20 What is the function of the poly(A) tail on most mRNAs? 1) to prevent viral infections 2) to decrease the stability of mRNA 3) to prevent premature degradation of the mRNA by exonucleases 4) to hasten degradation of the mRNA 5) to prevent premature degradation of the mRNA by endonucleases

Explanation / Answer

19- METHIONINE is the first amino acid incorporated in N- terminus polypeptide chain.

20- function of poly(A) tail on most mRNAs - to prevent premature degradation of the mRNA by endonuclease.

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