BIO311c-WS8-DNA%2CRNA%2CProtein-AnswerKey%20-BB

BIO311c-WS8-DNA%2CRNA%2CProtein-AnswerKey%20-BB - BIO 311c...

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1 BIO 311c Worksheet 8. K. Sathasivan ANWSER KEY A. Short Answer Questions 1. Draw a conceptual diagram of DNA and list 5 structural features of the same. See lecture notes and text book 2. List 6 enzymes involved in DNA replication and their functions. See lecture notes 3. What are the 3 major stages of protein synthesis? Include the steps involved without much details. See lecture notes It is only translation process – such as initiation, elongation and termination.
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2 4. Transcribe the DNA sequence below into an RNA strand (mark 5’ and 3” orientation) then translate that into an amino acid sequence using the codon table provided in the book. 3’-TAC GGA CAT GA T TAG GGT AGT GGG AAA TGA-5’ 5’-AUG CCU ---------------------------------------------------------3’ (mRNA) N- MET-PRO---------------------------------------------------------C (Protein) 5. A. Change the nucleotide below the asterisk from a T (bold and underlined) to a G and repeat the transcription and translation. This produces a __ point ____________ mutation in the DNA resulting in a ___ missense _______ mutation in the polypeptide. B. Remove the nucleotide T (bold and underlined) and repeat the transcription and translation. This produces a ___ deletion ________ mutation in the DNA resulting in a __ frame shift __________ mutation in the polypeptide. B. List all the components involved in Transcription and Translation and their specific functions. DNA / RNA or Protein or Others Function
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3 C. Multiple Choice Questions 1. Chargaff's rules were confirmed after Watson and Crick elucidated the double helical structure of DNA by the fact that a. the strands of DNA are antiparallel. b. ribose-phosphate forms the backbone of DNA. c. the double helix is right handed.
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BIO311c-WS8-DNA%2CRNA%2CProtein-AnswerKey%20-BB - BIO 311c...

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