DNA molecules are typically folded tightly. Stretching a strand of DNA means straightening it, and the molecules resist this straightening. Investigators can attach beads to the ends of a strand of DNA and, using "optical tweezers," measure the force required to produce a certain extension. Data for the stretch of a 3500 base pair strand of DNA approximately follow the line in the graph shown below. What is the spring constant for this strand of DNA? 1.0 pN = 1.0 x 10-12 N and 1.0 nm = 1.0 x 10-9 m. Restoring force (pN) 0.06- 0.04- 0.02 - 50 100 150 200 Extension (nm) O 4,0 x 10-6 N/m O 3.0 N/m O 2.5 N/m O 3.0 x 10-7 N/m O 4.0 N/m O 4.0 x 106 N/m O 2.5 x 10-7 N/m

DNA molecules are typically folded tightly. Stretching a strand of DNA means straightening it, and the molecules resist this straightening. Investigators can attach beads to the ends of a strand of DNA and, using "optical tweezers," measure the force required to produce a certain extension. Data for the stretch of a 3500 base pair strand of DNA approximately follow the line in the graph shown below. What is the spring constant for this strand of DNA? 1.0 pN = 1.0 x 10-12 N and 1.0 nm = 1.0 x 10-9 m. Restoring force (pN) 0.06- 0.04- 0.02 - 50 100 150 200 Extension (nm) O 4,0 x 10-6 N/m O 3.0 N/m O 2.5 N/m O 3.0 x 10-7 N/m O 4.0 N/m O 4.0 x 106 N/m O 2.5 x 10-7 N/m

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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