Concept explainers
To analyze:
Observe following DNA sequence:
Identify the restriction sites from the given sequence and highlight it using a box around each site.
a. EcoRI (
b. BamHI (
c. HinIII (
Introduction:
The enzymes which are able to spot a specific sequence on the DNA and are able to cut these specific sites are called as Restriction endonucleases. The sites where these restriction endonucleases introduce a cut on the DNA molecule are called as Restriction sites. The specificity of the restriction enzymes has led to the identification of several restriction enzymes which has its extensive use in research and industrial applications.
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Genetic Analysis: An Integrated Approach (2nd Edition)
- 1) The DNA fragment shown in Figure 1 is cleaved by the restriction enzyme EcoRI as indicated. The number in parenthesis shows the position of the cleavage site. The total length of the DNA fragment is 4000 bp. Small parts of the DNA sequence is known as shown. 5' ACCCTAGGTGTGACCGCGATCCGGCAGCATAAT 3' EcoRI (400) EcoRI (1300) EcoRI (3800) 3' CGCGAAATGCTTTAAGCGCTCTACGGGAGGG5' 3'AGCGTTAGAGTAGCCGGTAAAGGGTACGCGCCTTAA 5' Figure 1: DNA fragment with a total length of 4000 bp. The figure below depicts a gel on which marker DNA of known size has been run. Sketch the location of the bands that will appear, if the DNA fragment shown in Figure 1 is cleaved by EcoRI and afterwards run on the gel along with the marker DNA. 6000 5000 4000 3000 2000 1000 800 600 500 400 200arrow_forwardThe partial sequence of one strand of a double-stranded DNA molecule is 5'-GACGAAGTGCTGCAGAAAGTCCGCGTTATAGGCATGAATTCCTGAGG -3' EcoRI is a restriction enzyme that cleaves after G in the sequence 5'-GAATTC-3'. PstI is a restriction enzyme that cleaves after A in the sequence 5'-CTGCAG-3'. Write the sequence of both strands of the DNA fragment created when this DNA is cleaved with both EcoRI and PstI. The first strand of your duplex DNA fragment should be derived from the given strand sequence. 5'- -3' 3'- -5'arrow_forwardCoding With the given coding strand perform the following 1. supply the correct non- coding strand 2. Identify the location of following restriction enzyme by enderlining it in the coding strands 3. Supply the correct non-coding strands for the two restriction enzymes EcoRi - 5' GAATTC 3'BamH1 - 5' GGATTC 3' 5' ATGCATGGTACGTAGAGTTCCATGAATTCGCCCCTATAGGGTAGCCGAGGATTCTATGCCCGAATGTC 3'arrow_forward
- For the DNA sequence shown, indicate the products of its cleavage with the following restriction endonucleases (AKA restriction enzymes):5′-ACAGCTGATTCGAATTCACGTT-3′3′-TGTCGACTAAGCTTAAGTGCAA-5′a) EcoRI (the recognition sequence and cleavage site is G↓AATTC);b) AluI (the recognition sequence and cleavage site is AG↓CT).arrow_forwardGive the RNA molecule sequence transcribed from the following DNA sequence of a eukaryotic gene and with the correct 5' and 3' ends. DNA: 5'-ATAGGGCATGT-3' 3'-TATCCCGTACA-5' <--- template strand Group of answer choices 5'-ATAGGGCATGT-3' 3'-UAUCCCGUACA-5' 5'-AUAGGGCAUGU-3' 3'-TATCCCGTACA-5'arrow_forwardTelomerase supplies its own template RNA molecule as shown in Figure 3 below: B AAUCCCAAU TTAGGGTTAGGGTTAGGGTTAGGGTTAGGGTTAGGG-W' JAATCCCAATCCCAATCCCAA-X' Figure 3 (i) Label the ends (5' and 3') on the DNA and RNA strand at position X, Y and Z, in the Figure 3. (ii) Draw and explain the two loop structures at the end of telomere.arrow_forward
- #16) The restriction enzymes Xhol and SalI cut their specific sequences as shown below: XhoI 5' C | TCGAG 3' SalI | 5' GTCGAC 3' 3' GAGC | TC 5' 3' G | AGCTG 5' Can the sticky ends created by XhoI and SalI sites be ligated? If yes, can the resulting sequences be cleaved by either XhoI or SalI?arrow_forwardThe 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.arrow_forwardConsider the following DNA template: 5’-AAGAGGTTCCAATGCAGGCACTCACCAACTCTTAAATAAA-3’ 3’-TTCTCCAAGGTTACGTCCGTGAGTGGTTGAGAATTTATTT-5’ If the bottom DNA strand is used as template to transcribe mRNA, predict the amino acid sequence that would result from the process of translation. Met-Ala-Leu-Thr-Gln-Glu-Gly Met-Gly-Ser-Leu-Asn-Ser-Gln Met-Thr-Asn-Ser-Leu-Ala-Gln Met-Gln-Ala-Leu-Thr-Asn-Ser Met-Glu-Ala-His-Trp-Ser-Tyrarrow_forward
- The recognition sequence for the restriction enzyme TaqI is T↓CGA. Indicate the products of the reaction of TaqI with the DNA sequence shown.arrow_forwardPlease in detail, what the picture attached representsarrow_forwardGiven the DNA sequence of the restriction enzyme: gi|6329444|dbj|AB034757.1| Hynobius retardatus mRNA for larval beta-globin, complete cds GCAGAATCTGACTCAAGAAATCCCTCCTCACCCAACACCACCAGCAGCCATGGTTCACTGGACAGCAGAGGAGAAGGCAGCCATCAGCTCTGTGTGGAAGCAGGTGAACGTGGAGAGCGATGGACAGGAGGCCCTGGCCAGGTTGCTGATCGTCTACCCCTGGACCCAGAGATACTTCAGCTCTTTTGGGGACCTGTCGAGCCCAGCTGCCATTTGTGCCAACGCCAAGGTCCGTGCCCATGGCAAGAAGGTCCTGTCCGCCCTGGGAGCCGGCGCCAACCACCTGGATGACATCAAAGGCAACTTTGCTGATCTGAGCAAGCTTCACGCAGACACACTCCATGTGGACCCCAATAACTTCCTGCTCCTGGCAAACTGCCTGGTGATCGTCTTGGCCCGCAAGCTGGGAGCCGCCTTCAACCCTCAAGTCCATGCGGCCTGGGAGAAGTTCCTGGCCGTCTCCACCGCGGCTCTGTCCAGAAACTACCACTAGAGACTGGTCTTTGGGTTTAATTCTGTGAACGTCCCTGAGACAAATGATCTTTCAATGTGTAAACCTGTCATTACATCAATAAAGAGACATCTAACAAAAAAAAAAAAAAAAAAAAAAAAAA Identify two blunt-end cutters Identify two sticky-end cutters. For each, Provide the sequence of the Restriction enzyme, Highlight using a specific color where the DNA sequence where the restriction enzyme will cut the DNA Indicate the…arrow_forward
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