In a disorder called gyrate atrophy, cells in the retina begin to degenerate in late adolescence, causing night blindness that progresses to total blindness. The cause is a mutation in the gene that encodes an enzyme, ornithine aminotransferase (OAT). Researchers sequenced the OAT gene for 5 patients with the following results: Patient A: A change in codon 209 of UAU to UAA Patient B: A change in codon 299 of UAC to UAG Patient C: A change in codon 426 of CGA to UGA Patient D: A two-nucleotide deletion at codons 64 and 65 that results in a UGA codon at position 79. Patient E: Exon 6, including 1071 nucleotides is entirely deleted. Which patient(s) have a frameshift mutation? How many amino acids is patient E missing? Which patient(s) will produce a shortened protein?
In a disorder called gyrate atrophy, cells in the retina begin to degenerate in late adolescence, causing night blindness that progresses to total blindness. The cause is a mutation in the gene that encodes an enzyme, ornithine aminotransferase (OAT). Researchers sequenced the OAT gene for 5 patients with the following results: Patient A: A change in codon 209 of UAU to UAA Patient B: A change in codon 299 of UAC to UAG Patient C: A change in codon 426 of CGA to UGA Patient D: A two-nucleotide deletion at codons 64 and 65 that results in a UGA codon at position 79. Patient E: Exon 6, including 1071 nucleotides is entirely deleted. Which patient(s) have a frameshift mutation? How many amino acids is patient E missing? Which patient(s) will produce a shortened protein?
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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- In a disorder called gyrate atrophy, cells in the retina begin to degenerate in late adolescence, causing night blindness that progresses to total blindness. The cause is a mutation in the gene that encodes an enzyme, ornithine aminotransferase (OAT). Researchers sequenced the OAT gene for 5 patients with the following results:
Patient A: A change in codon 209 of UAU to UAA
Patient B: A change in codon 299 of UAC to UAG
Patient C: A change in codon 426 of CGA to UGA
Patient D: A two-
Patient E: Exon 6, including 1071 nucleotides is entirely deleted.
- Which patient(s) have a frameshift mutation?
- How many amino acids is patient E missing?
Which patient(s) will produce a shortened protein?
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