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What, if any, are potential restriction enzyme recognition sequences in this DNA? (Only consider sequences of 6 bp or longer.) Using any of the sites which you identified in above, illustrate cleavage positions for that site which will result in a 5’ overhang or a 3’ overhang respectively.
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- Which forward are reverse primers will amplify the following sequence by PCR? 5' GACCTCGCCGACGCCCTCGACCAGCTCCTGCGCCGCACCCGCCACCTCGCCGAGACC GAGCAGAAAACCCGCCGTCGGAGAGCCACCCGCTCCGGTACGGCAGCACAGTTGCCCGA TCTTCCAGGCCAGCGGCGCCCATTCGACGCAGAGACCGCACCGGCCCCGGCACCGGACT GGAGCGAGAGCCTGGACGACCTCATCAGCGTCGACACGGCGGCCCAGACCGGCACGAGC GAGATGGAGGGCGCGAGCGTGCCGCCGGCCGAGGCAGGCGGGTACGGGCTGTGGGACGC CGAAGCGGAAGCCGAGCAATGGTGAACGCCTCACCGGGCACGAGCGATACGCCGGG 3'Please help meThe following DNA sequence was determined by Sanger sequencing, using a 20 nt long sequencing primer that ended ...AGTACAACAA-3'. 5'-agtacaacaa ctctcggtc tacggtacgc ctgcgggcgc gtagccaatc tagcacttcg-3' 3'-tcatgttgtt gagagccag atgccatgcg gacgcccgcg catcggttag atcgtgaagc-5′ A. If the technician forgot to add ddNTPs to the reaction, what would the sequencing chromatogram look like? Blank Many peaks, but only one at each position Overlapping peaks at every position All peaks are black There is only one peak, at 60 nt B.When the reaction is done correctly, ddCTP is labeld with a yellow fluorescent tag. When the Sanger sequencing reaction is complete, what will be the lengths, in nucleotides, of the three shortest products that have the yellow tag? C. Could you perform Illumina sequencing using ddNTPs? Why or why not? Explain.
- 5. The nucleotide sequences of the DNA molecules in the figure below were obtained from four different individuals, one wild type and three mutants. Wild Type 5'-TTATCCATGATCGGATCGATCCATTAGCCGA-3' 3'-AATAGGTACTAGCCTAGCTAGGTAATCGGCT-5’ Mutant I 5'-ATCCATGATCGGATTGATCCATTAGCCGAAT-3’ 3'-TAGGTACTAGCCTAACTAGGTAATCGGCTTA-5’ Mutant II 5'-CCGTTATCCATGATCGGATAGATCCATTAGCC-3’ 3'-GGCAATAGGTACTAGCCTATCTAGGTAATCGG-5’ Mutant III 5'-CACCGTTATCCATGATCGGAACGATCCATTAGC-3’ 3'-CAGGCAATAGGTACTAGCCTTGCTAGGTAATCG-5’ a) Identify the open reading frames in each sequence of DNA and translate them into proteins. Write down the sequence of amino acids that will be obtained after translation: b) Which of the mutations above would be least likely to cause a change in the function of the protein? Why? c) Which of the mutations above would probably cause a major disruption in the function of the protein? Why?The following are DNA fragments containing a small gene. The top strand is the coding strand. Transcribe all 5 groups and translate. Group A 5’-GGCAATGGGTTTGTGCAATTCTAAAAGTTTTTAATTC-3’ 3’-CCGTTACCCAAACACGTTAAGATTTTCAAAAATTAAG-5’ Group B 5’-GGCAATGGGTTTGTGAAATTCTAAAAGTTTTTAATTC-3’ 3’-CCGTTACCCAAACACTTTAAGATTTTCAAAAATTAAG-5’ Group C 5’-GGCAATGGGTTTGTGCAATTCTAAGAGTTTTTAATTC-3’ 3’-CCGTTACCCAAACACGTTAAGATTCTCAAAAATTAAG-5’ Group D 5’-GGCAATGGGTTTGTGCAATTCTAACAGTTTTTAATTC-3’ 3’-CCGTTACCCAAACACGTTAAGATTGTCAAAAATTAAG-5’ Group E 5’-GGCAATGGGTTTTGCAATTCTAAAAGTTTTTAATTC-3’ 3’-CCGTTACCCAAAACGTTAAGATTTTCAAAAATTAAGYou are working in a research lab studying human Peptide Z, which is a short protein that plays a key role in responding to SARS-CoV-2 virus infection. Your advisor gives you the double-stranded DNA sequence encoding Peptide Z (below), but she neglects to tell you which are the coding and non-coding strands of this DNA before leaving on a six-month sabbatical. 5'-AGA CCC ATG CCT CAG CAG TTC TTT GGA TTA ATG TAA-3' 3'-TCT GGG TẠC GGA GTC GTC AAG AAA CCT AAT TẠC ATT-5' Using your understand of transcription, translation, and the codon table below, determine if the top strand or bottom strand is the template strand of the Peptide Z gene. (Enter either top strand or bottom strand.) What is the sequence of the RNA that encodes Peptide Z? Note that the entire DNA sequence is transcribed. 5' - - 3' What is the amino acid sequence of Peptide Z? Make sure you indicate the carboxyl-terminus and amino-terminus with C and N, respectively.
- 2. Here is the detailed view of the MCS of the PUC19 plasmid: Sma I KpnI SbfI PstI SacI XbaI ECORI BamHI Sall SphI HindIII agt GAATTCGAGCTCGGTACCCGGGGA TCCTCTAGAGTCGACCTGCAGGCATGCAAGCTTGGcgtaatcatggtcat 400 410 420 430 440 450 460 ...S N S SP VR PDEL TS R CAH LS P T IM T M lacZa translational start Figure 25: MCS of PUC19 A. If the MCS were cut with Kpn I and BamH I, draw the small fragment of DNA that would be cut out. Show both strands. For reference, here are the recognition sequences: 5' G|GAT СС 3' 3' С СТАG|G 5' recognition sequence for BamH I 5' G GTAC|C 3' 3' cl CATG G 5' recognition sequence for Kpn I Figure 26: recognition sequences for BamH I and Kpn I8. You have a piece of DNA with the sequence shown below. 5-AAAGTCGCTGGAATTCACTGCATCCCCGGGGCTATATATGAATTCGATGCGTACTTGGCACG-3' 3'TTTCAGCGACCTTAAGTGACGTAGGGGCCCCGATATATACTTAAGCTACGCATGAACCGTGC-5' You cut this fragment with the restriction enzyme EcoRI. The recognition site for EcoRI is 5-GAATTC-3' 3-CTTAAGS" EcoRI cuts at the site and in the manner indicated by the arrows to yield fragments with overhanging ends. 3-СТТААG-5' 5'G AATTC-3' 3-СТТАА G-5' Draw an illustration showing how the piece of DNA is cut by EcoRI and how many fragments result. Show all the base pairs and the overhanging ends at the ends of the DNA fragments.Given Sequence: 3’-TACGGTCCGGATTCGGTAGCTAGCATC-5’ Provide: Complementary Strand: Transcript Amino Acid Sequence 2.Given Sequence: 5’-GGGCATATGCCGTTTACCGGTTTGACTAAATAACCA-3’ Provide: Complementary Strand: Transcript Amino Acid Sequence 3.Given Sequence: 3’-AAC CAA TAC GTG AGG ATA CCA AGT AAC ACT CCC-5’ Provide: Complementary Strand: Direct Transcript: Transcript for Translation: Amino Acid Sequence:
- Below is a depiction of a replication bubble. 5' AGCTCCGATCGCGTAACTTT 3' TCGAGGCTAGCGCATTGAAA CTAAAGCTTCGGGCATTATCG 3' GATTTCGAAGCCCGTAATAGC TATCGACS Consider the following primer which binds to the DNA replication bubble on the diagram above: 5'-GCUAUCG-3' Identify the DNA sequence to which this primer would bind and the orientation. If the replication fork moves to the right, will the primer be used to create the leading strand of replication or the lagging strand? Explain your answer b. If the replication fork moves to the left, will the primer be used to create the leading strand of replication or a. the lagging strand? Explain your answer. What would the next five nucleotides added to the primer by DNA polymerase? С.Given: BamHI, cleaves after the first G: 5’ G GATCC 3’ 3’ CCTAG G 5’ AND BclI cleaves after the first T: 5’ T GATCA 3’ 3’ ACTAG T 5’ THEN -- Given the DNA shown below: 5’ATTGAGGATCCGTAATGTGTCCTGATCACGCTCCACG3’ 3’TAACTCCTAGGCATTACACAGGACTAGTGCGAGGTGC5’ i) If this DNA was cut with BamHI, how many DNA fragments would you expect? ii) If the DNA shown above was cut with the enzyme BclI, how many DNA fragment would you expect?This is part of the Escherichia coli DNA sequence that contains an inverted repeat. (Note: top strand is the coding strand). 5'-AACGCATGAGAAAGCCCCCCGGAAGATCACCTTCCGGGGGCTTTATATAATTAGC-3' 3'-TTGCGTACTCTTTCGGGGGGCCTTCTAGTGGAAGGCCCCCGAAATATATTAATCG-5' Draw the structure of hairpin loop that will be formed during the end of transcription.