2. Researchers were interested in a human syndrome characterized by short stature, hearing loss, premature aging and photosensitivity. Panel A shows the effect of UV on fibroblast survival. Panel B shows the effect of UV on lymphoblast replication. Panel C shows the effect of UV dose on unscheduled DNA synthesis (UDS), which is DNA synthesis that occurs at times other than S-phase. Ignore panel D. Based on these results, generate a possible hypothesis the molecular cause of this syndrome. Name one protein that could be involved and design experiment to test its involvement. Be sure to include appropriate controls. % Survival relative to unirradiated > U UDS/cell (AU) 100 10 0.1 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 0 0 0 2 4 6 8 UV dose (J/m²) 4 UV dose (J/m³) 8 10 10 -WT -P3 12 14 -WT P2 -P3 12 B Population doublings in 72 h relative to unirradiated O % RRS relative to unirradiated 0.8 O 0.6 0.4 0.2 140 120 100 80 60 40 20 O -WT (L7) --L5 -L6 2 10 4 6 8 UV dose (J/m²) 10 UV dose (J/m²) 15 10 -WT P2 P3 CS 12 20
2. Researchers were interested in a human syndrome characterized by short stature, hearing loss, premature aging and photosensitivity. Panel A shows the effect of UV on fibroblast survival. Panel B shows the effect of UV on lymphoblast replication. Panel C shows the effect of UV dose on unscheduled DNA synthesis (UDS), which is DNA synthesis that occurs at times other than S-phase. Ignore panel D. Based on these results, generate a possible hypothesis the molecular cause of this syndrome. Name one protein that could be involved and design experiment to test its involvement. Be sure to include appropriate controls. % Survival relative to unirradiated > U UDS/cell (AU) 100 10 0.1 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 0 0 0 2 4 6 8 UV dose (J/m²) 4 UV dose (J/m³) 8 10 10 -WT -P3 12 14 -WT P2 -P3 12 B Population doublings in 72 h relative to unirradiated O % RRS relative to unirradiated 0.8 O 0.6 0.4 0.2 140 120 100 80 60 40 20 O -WT (L7) --L5 -L6 2 10 4 6 8 UV dose (J/m²) 10 UV dose (J/m²) 15 10 -WT P2 P3 CS 12 20
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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