22. Below is a DNA double helix coding for a very small polypride. Nontemplate Strand 5' TTTTATGCGCCCCAGTAAGTAATGACTA 3' AAAATACGCGGGGTCATTCATTACTGAT-Template Strand 5' 3' a. What is the direction of synthesis for the mRNA? b. Draw the m-RNA that would be transcribed (labeling the 5' and 3' ends) and circle the initiator codon. c. Which end of the mRNA is transcribed first? d. Using the genetic code table, list the amino acid sequence resulting from this mRNA.

22. Below is a DNA double helix coding for a very small polypride. Nontemplate Strand 5' TTTTATGCGCCCCAGTAAGTAATGACTA 3' AAAATACGCGGGGTCATTCATTACTGAT-Template Strand 5' 3' a. What is the direction of synthesis for the mRNA? b. Draw the m-RNA that would be transcribed (labeling the 5' and 3' ends) and circle the initiator codon. c. Which end of the mRNA is transcribed first? d. Using the genetic code table, list the amino acid sequence resulting from this mRNA.

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter29: Transcription And The Regulation Of Gene Expression

Section: Chapter Questions

Problem 1P

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Cynt Classifying mutations A certain section of the coding (sense) strand of some DNA looks like this: $-ATGTATATCTCCAGTTAG-3" It's known that a very small gene is contained in this section. Classify each of the possible mutations of this DNA shown in the table below. mutant DNA 5- ATGTATCATCTCCAGTTAG-3' S-ATGTATATCTCCAGTTAG-3 5- ATGTATATATCCAGTTAG-3' type of mutation (check all that apply) insertion deletion point silent noisy insertion O deletion point silent noisy insertion O deletion point silent Onoisy X G
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QUESTION: Transcribe the gene. Write out the correct sequence of m RNA bases. Notice that this is the same gene as in B above. Recall that in RNA, thymine (T) does not exist and uracil (U) takes its place. 3' ССА TAG CÁC CTT GTC ACA ACG TGT TCG TAG ACA 1 3. 4. 6. 7. 8. 9- 10 11 AGG AAC АТА ATA GTT AAC CTT TTG ATA ACA ТТА ACT 12 13 14 15 16 17 18 19 20 | 21 in
First Letter A G U с 22. Using the provided "Genetic Code-Reference" answer the following question. Based on the following DNA template strand, write out the amino acid chain produced. 23. Consider the following mRNA base codon sequence 5'-AUC-GAA-3' and the provided "Genetic Code-Reference". Genetic Code-Reference UUU UUC UUA UUG CUU CUC CUA CUG (mutated or silent) (mutated or silent) b. Briefly explain your reasoning for each. (be sure to include both parts) AULLY AUU a. Label which of the following would result in a mutated amino acid sequence or a silent mutation. (May help to first determine the original amino acid sequence, then compare to mutations) U Phe mRNA codon sequence: anticodon sequence: amino acid sequence: Leu Leu 5'-AUA-GAA-3' Val 5'- AUC-GAC-3' AUC Ille AUA AUAJ *AUG Met/Start GUU GUC GUA GUG UCU UCC UCA UCG) CCU) CCC ccc CCA 000 CCG ACU ACU ACC ACA ACG, C GCU GCC GCA GCG Second Letter Ser Pro Thr 3'-CAA-GTC-TGT-5' Ala UAU UAC) Tyr Туг A **UAA Stop UAG Stop CAU] CACJ…
pcc300ATAAADATATAOOTTAA 1. Use the genetic code table and the information in the diagram below to determine the amino acids that would make up the portion of the polypeptide shown. Include information for a key as well. DNA template 3' G CATA ACAGAGGATT-5' al bnsua AMAm pniwollot erfT E transcription s yd bnsita ebitgeqylog s sidmeaze of beae RNA strandUU UAOUOUU A-emoaodin 5'-CGUA AUUGUC UCCUUA- 3' J J JL erit o elinW (s) translation bluow terdt aspnso sigootiwsone polypeptide viemetis ns ebivo19 (d) ent ot etslanT Key:
Format Tools Add-ons Help Last edit was seconds ago Arial BIUA Normal text 11 1 3 Which of the following molecules|are involved in gene expression? Choose all that apply. O RNA polymerase O Splicing O Primer O Origin O Stop codon O Start codon O Parental strand O IRNA O Okazaki fragment O Bubble OFork O Leading strand O Helicase O DNA polymerase OA site O Amino acid attachment site O Primase O Primer O Terminator sequence MAY 18 étv A MacBook Air
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RNA is transcribed. Label the 5′ and 3′ ends of each strand. 17. The following sequence of nucleotides is found in a single-stranded DNA template: ATTGCCAGATCATCCCAATAGAT Assume that RNA polymerase proceeds along this template from left to right. a. Which end of the DNA template is 5′ and which end is 3′? b. Give the sequence and identify the 5′ and 3′ ends of the RNA transcribed from this template.
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RNA Transcription, Translation, and Mutation Worksheet First, here is a strand of DNA. This strand contains both a gene and its promoter region. Circle the promoter region in blue, draw a yellow box around the TATA box, draw a green box around the start codon, and draw a red box around the stop codon: TATATATATTACGTTGCATACGCTCAACGGTCGAAACTGCATGGGCAC ATATATATAATGCAACGTATGCGAGTTGCCAGCTTTGACGTACCCG Now imagine this gene has been transcribed into RNA. What would that RNA strand look like? Before the above RNA strand can be translated, a few modifications must first take place (in eukaryotes). What are they? 1) 2) 3) Using a codon chart of your choice (one can be found here, or here) translate the above RNA transcript (assume no splicing took place). Write the three letter abbreviations for the amino acids in the image below: Now imagine that a mutation took place in the original strand of DNA (marked in red) TATATATATTACGTTGCATACCCTCAACGGTCGAAACTGCATG…
BM4_DNA AND PROTEIN S X /1FAIPQLSDP_g5B-629FSHNpGnTMIEppLS4A71zBd4vcUBqNUILubXONw/formResponse 4. What is the nitrogen base pair of Adenine in transcription? O Cytosine O Uracil O guanine O thymine 5. The central dogma of Molecular Biology states that There are four nitrogen bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). Which process is not included in the central dogma? duplication transcription translation O translocation Leadple
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