a. The reading frame DNA sequence is b. The mRNA sequence is c. The polypeptide sequence is a.The mutated polypeptide sequence is b.What kind of mutation was produced?
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a. The reading frame DNA sequence is
b. The mRNA sequence is
c. The polypeptide sequence is
a.The mutated polypeptide sequence is
b.What kind of mutation was produced?
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- You obtained the sequence of the frog gene X you amplified in Question #16 through a process called automated sequencing. In automated sequencing, you are given a printout of the sense strand of your DNA. The first thing you need to do is use the correct reading frame. Having done this, the next thing to do is to write out the mRNA sequence using this sense strand reading frame. The last thing to do is to translate the sequence. a.The reading frame DNA sequence is: b.The mRNA sequence is: c.The polypeptide sequence is: A disease in frogs which causes their tongue to fall out of their mouths is killing the frog population in LA County. You obtain a dead frog and isolate its gene Xf. When you sequence this mutated gene, you find that the last ‘G’ at the end of the first line of this sequence has been deleted (i.e. the G at position 86). In order to determine how this mutation changes the resulting polypeptide, write the mutated polypeptide sequence in the space below. What kind of…You obtained the sequence of the frog gene X you amplified in Question #16 through a process called automated sequencing. In automated sequencing, you are given a printout of the sense strand of your DNA. T he printout is shown below. ' The first thing you need to do is use the correct reading frame. Having done this, the next thing to do is to write out the mRNA sequence using this sense strand reading frame. The last thing to do is to translate the sequence. The reading frame DNA sequence is: The mRNA sequence is: The polypeptide sequence is: A disease in frogs which causes their tongue to fall out of their mouths is killing the frog population in LA County. You obtain a dead frog and isolate its gene Xf. When you sequence this mutated gene, you find that the last ‘G’ at the end of the first line of this sequence has been deleted (i.e. the G at position 86). In order to determine how this mutation changes the resulting polypeptide, write the mutated polypeptide sequence in the…In automated sequencing, you are given a printout of the sense strand of your DNA. the first thing you need to do is use the correct reading frame. Having done this, the next thing to do is to write out the mRNA sequence using this sense strand reading frame. The last thing to do is to translate the sequence. Do these steps in the space below. a. The reading frame DNA sequence is?
- In automated sequencing, you are given a printout of the sense strand of your DNA. The printout is shown below. The first thing you need to do is use the correct reading frame. Having done this, the next thing to do is to write out the mRNA sequence using this sense strand reading frame. The last thing to do is to translate the sequence. Do these steps in the space below. The mRNA sequence is:In automated sequencing, you are given a printout of the sense strand of your DNA. The printout is shown below. The first thing you need to do is use the correct reading frame. Having done this, the next thing to do is to write out the mRNA sequence using this sense strand reading frame. The last thing to do is to translate the sequence. Do these steps in the space The polypeptide sequence is:If you knew the mRNA sequence for the human insulin gene could you know what size cDNA fragment you would find on your DNA gel when you ran it against a size standard (a “molecular ruler”)? Would you continue with your insulin cloning experiment, if the DNA from your PCR was very different in size from that predicted by the insulin mRNA? Why or why not? Primers can sometimes bind and target the wrong gene, especially if the primers are allowed to bind to the DNA strands at a low temperature. PCR also preferentially amplify short segments of DNA. Would it be important to actually run the cDNA after the PCR on a DNA gel in order to check for a PCR product of the predicted size for the insulin gene? Why or why not?
- Researchers are manipulating the gene cxx2 for their experiments, and they have inserted a smallnumber of base pairs randomly somewhere into the gene. They isolate several versions (with differentinsertions) of this modified gene and carry out an RT-PCR using a primer that recognizes thetranscriptional start site area (eg. from +1 to +20), and a primer that binds to the polyA tail.For the second modified gene sample, they observe that the mature mRNA is now several basepairs longer, however splicing has not been affected. They examine the protein and identify thatit has significant changes to its amino acid sequence, altering its length. Which of the letteredarrowheads indicates the location where this insertion could be? (There could be one answer orseveral. Give all answers that apply)You sequence a gene of interest and isolate the matching mRNA. You find that the mRNA is considerably shorter than the DNA sequence. Why is that?You isolate a mouse Tau-gene-containing DNA fragment from the chicken and hybridize it to the freshly-made and isolated hnRNA (primary transcript) from the nucleus of the mouse cells transcribed from the Tau gene (immediately after it was produced), allowing no time for processing of the hnRNA. Describe what you see when you look at the DNA/RNA hybrid molecule under the electron microscope.
- Given the template DNA sequence: 3’ - TAC - CAG - GTT - ACC - ATC - 5’ A.) What will be the mRNA requence corresponding to the template DNA sequence? B.) What is the amino acid sequence in letter A? ( e.g. Arg, Phe, etc.) C.) If the coding sequence of the dsDNA will "serve" as the template for transcription, what is the corresponding mRNA sequence? D.) With the mRNA transcript in letter C, what will be the amino acid sequence? ( e.g. Arg, Phe, etc.)As we described in class, in the early 1960's Francis Crick and colleagues set out to determine how many nucleotide bases make up a codon, before it was possible to sequence DNA and before Nirenberg and his colleagues solved the genetic code. To do this, they used a chemical mutagen that they knew made single nucleotide changes, used this mutagen to conduct a screen for mutations that disrupted a particular gene, and collected a number of different mutations in this gene. Briefly describe the logic they used to deduce that the codon length is 3 nucleotides long.the one above: Replicate this sense strand to create a double-stranded DNA helix TGAGGATGAAACTCACACCGGGGCGCAGTTTGGCACTTAGATTCTTGTACACGACCTAGTATAACACAGTT Compare this mutated sense sequence given below to the original one given above and identify and classify all mutations that can be found in this new DNA sequence? TGAGCATGAAACTCACACCGGGGGCAGTTTCGCACTTAGGATTCTTGTACAGGACCTAGTATAACAAGTT 2. Using this mutated DNA strand, express it as a polypeptide by using the correct reading frame. When you get to the stop codon – you may write an “*” to denote the stop codon. 3. How many amino acids were changed in the mutated polypeptide?