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Comparison of different tissues shows that the ITY gene produces a 900 nt mature mRNA and a 190 amino acid long protein in peripheral nerves, but in another tissue, the same gene produces a 720 nt long mRNA and a larger protein, 130 amino acid long. This is a result of alternative splicing. a. For this difference to result from alternative splicing, does there need to be a difference in the DNA sequence between the ITY gene in the peripheral nerves, and the ITY gene in the other tissue? Yes Explain your reasoning: No

Comparison of different tissues shows that the ITY gene produces a 900 nt mature mRNA and a 190 amino acid long protein in peripheral nerves, but in another tissue, the same gene produces a 720 nt long mRNA and a larger protein, 130 amino acid long. This is a result of alternative splicing. a. For this difference to result from alternative splicing, does there need to be a difference in the DNA sequence between the ITY gene in the peripheral nerves, and the ITY gene in the other tissue? Yes Explain your reasoning: No

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Comparison of different tissues shows that the ITY gene produces a 900 nt mature mRNA and a 190 amino acid long protein in peripheral nerves, but in another tissue, the same gene produces a 720 nt long mRNA and a larger protein, 130 amino acid long. This is a result of alternative splicing. a. For this difference to result from alternative splicing, does there need to be a difference in the DNA sequence between the ITY gene in the peripheral nerves, and the ITY gene in the other tissue? Yes Explain your reasoning: No b. If an entire exon is included in one tissue, and excluded in the other, what is the length, in nucleotides, of the alternatively-spliced exon? c. Which part(s) of the protein have difference sequences in the two types of nerves, the N- terminus, C-terminus, or middle of the protein? i. N-terminus ii. C-terminus iii. Somewhere in the middle of the protein
Transcribed Image Text:Comparison of different tissues shows that the ITY gene produces a 900 nt mature mRNA and a 190 amino acid long protein in peripheral nerves, but in another tissue, the same gene produces a 720 nt long mRNA and a larger protein, 130 amino acid long. This is a result of alternative splicing. a. For this difference to result from alternative splicing, does there need to be a difference in the DNA sequence between the ITY gene in the peripheral nerves, and the ITY gene in the other tissue? Yes Explain your reasoning: No b. If an entire exon is included in one tissue, and excluded in the other, what is the length, in nucleotides, of the alternatively-spliced exon? c. Which part(s) of the protein have difference sequences in the two types of nerves, the N- terminus, C-terminus, or middle of the protein? i. N-terminus ii. C-terminus iii. Somewhere in the middle of the protein
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