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- Can you explain in a few sentences how the change in the structure of the gene affects the function of the corn plant?
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- What do you mean by lysozyme gene?You have a patient in your clinic presenting symptoms of cystic fibrosis. You screen their CFTR gene for mutations, and find the following list: CFTR 320 L V CFTR 341 S W CFTR 528 E D CFTR 976 F Q CFTR 1235 S R Which mutation(s) are likely causing cystic fibrosis in this patient? You also sequence a newborn family member of this patient. They have all of these same mutations, other than the one at position 976, and no other mutations in CFTR. Do you predict this person will develop cystic fibrosis? Explain why.Unanswered As a hobby you propagate a population of worms. You notice that one worm is now clear instead of being tan. You trace down the mutation and discover that it is a single basepair deletion in a pigmentation gene. Explain how a single basepair deletion could result in a drastic mutant phenotype. Your answer Write your response here... ion on
- Which of the following is a transition mutation? OG --> T G --> A G --> COriginal DNA Sequence: TACAC CTTGG CGACGACT... MRNA Sequence: Amino Acid Sequence: Mutated DNA Sequence #5 TACACCTT G G GACGACT... (Highlight the change) What's the mRNA sequence? What will be the amino acid sequence? Will there likely be effects? What type of mutation is this? 1. Which type of mutation is responsible for new variations of a trait? 2. Which type of mutation does not result in an abnormal amino acid sequence? 3. Which type of mutation stops the translation of an mRNA molecule? NOWhat are some of the problems that might arise if you were trying to produce a eukaryotic protein in a bacterium? How ight using transgenic plants or animals help solve some of these problems?
- What is a gene? How many oxons are in the basic structure of a geneIn three sentences describe how Sanger sequencing worksYou have the following DNA coding sequence of a wild-type allele: 5’-ATG TTC CAG CTA GAT GAT ATG CTG GTA ATT GGG GAA CGC GCG CGG TAA-3’ For each of the following mutations: A. State whether the mutation is missense, nonsense, frameshift, or silent. B. Write the codon change that occurs for the missense, nonsense, and silent mutations (ex. GAA -- GAT). C. For frameshift mutations, write out the entire mutant sequence with each codon clearly indicated (if the frameshift creates a new stop codon, end the sequence at the new stop). Using the wild type DNA sequence above as a guide : Write the amino acid sequence of the mutants. Mutant 1: transition at nucleotide 23 Mutant 2: T --> G transversion at nucleotide 29 Mutant 3: an insertion of “A” after nucleotide 14 Mutant 4: transition at nucleotide 7 Mutant 5: An insertion of GG after nucleotide 40 Mutant 6: transition at nucleotide 15 Mutant 7: a deletion of nucleotide 25
- (i) For the chromatogram below, what is the sequence of the template DNA from base 115 to 125? CTGTGTGAAATTGT TA T CCGC T CA CA AT T C CACA CA A CATA CGAGC CGGAAG CA TA A 110 120 130 140 150 160 (ii) An allele of a gene has the following change in it's sequence ATG GTG CÁC CTG ACT CCT GTG GAG AAG TCT compared to the wild type ATG GTG CAC CTG ACT CT GAG GAG AAG TCT With reference to the sequence; there is a codon, resulting in a change from is a mutation in the to which mutation.The photos below show flowers from two Arabidopsis plants. The plant on the left is wild-type (unmutated); the other carries a mutation that causes its flowers to have sepals and petals instead of stamens and carpels. The mutation inactivated one of the plant's ABC floral identity genes. Refer to Figure 10.8 and decide which gene (A, B, or C) has been inactivated.What percentage of the DNA in the genome actually corresponds to genes? How much is actually protein-coding exons? What makes up the rest?
