An investigation was carried out to determine the mutation rate in DNA exposed to different wavelengths of UV light. The results are presented graphically in the diagram below. The data indicates that the wavelength of UV that produces the maximum mutation rate in DNA is A. 240 nm. B. 270 nm. C. 270 nm. D. 290 nm.

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An investigation was carried out to determine the mutation rate in DNA exposed to different wavelengths of UV light - VCE - SSCE Biology - Question 17 - 2005 - Paper 1

Question 17

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An investigation was carried out to determine the mutation rate in DNA exposed to different wavelengths of UV light. The results are presented graphically in the dia... show full transcript

Worked Solution & Example Answer:An investigation was carried out to determine the mutation rate in DNA exposed to different wavelengths of UV light - VCE - SSCE Biology - Question 17 - 2005 - Paper 1

Step 1

The data indicates that the wavelength of UV that produces the maximum mutation rate in DNA is

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Answer

To determine the wavelength of UV that produces the maximum mutation rate, we analyze the graph presented. From the graph:

The solid curve shows the effectiveness of inducing mutations, peaking around 270 nm.
Although 240 nm shows some absorption, it does not correspond with the highest mutation rate.

Thus, the correct answer is B. 270 nm.

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