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1. A French individual has an estimated 3% Neanderthal DNA in segments that that are 0.0005 Morgans long. Assume that individual is representative, that the Neanderthal segments are essentially neutral, and that the interbreeding occurred at one time point in the past. a. What is the best estimate for how long ago the interbreeding event was? b. What is the mean length of the French or European chromosome segments, assuming they constitute the rest of the genome? c. Suppose now that the interbreeding (still M-0.03) had been spread over 500 generations, starting with the mean you just calculated. Would the mean length of Neanderthal segments be longer or shorter than the 0.0005 given above? Why? (you can't calculate the number; just give a qualitative answer.

1. A French individual has an estimated 3% Neanderthal DNA in segments that that are 0.0005 Morgans long. Assume that individual is representative, that the Neanderthal segments are essentially neutral, and that the interbreeding occurred at one time point in the past. a. What is the best estimate for how long ago the interbreeding event was? b. What is the mean length of the French or European chromosome segments, assuming they constitute the rest of the genome? c. Suppose now that the interbreeding (still M-0.03) had been spread over 500 generations, starting with the mean you just calculated. Would the mean length of Neanderthal segments be longer or shorter than the 0.0005 given above? Why? (you can't calculate the number; just give a qualitative answer.

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
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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1. A French individual has an estimated 3% Neanderthal DNA in segments that that are 0.0005 Morgans long. Assume that individual is representative, that the Neanderthal segments are essentially neutral, and that the interbreeding occurred at one time point in the past. a. What is the best estimate for how long ago the interbreeding event was? b. What is the mean length of the French or European chromosome segments, assuming they constitute the rest of the genome? c. Suppose now that the interbreeding (still M-0.03) had been spread over 500 generations, starting with the mean you just calculated. Would the mean length of Neanderthal segments be longer or shorter than the 0.0005 given above? Why? (you can't calculate the number; just give a qualitative answer.
Transcribed Image Text:1. A French individual has an estimated 3% Neanderthal DNA in segments that that are 0.0005 Morgans long. Assume that individual is representative, that the Neanderthal segments are essentially neutral, and that the interbreeding occurred at one time point in the past. a. What is the best estimate for how long ago the interbreeding event was? b. What is the mean length of the French or European chromosome segments, assuming they constitute the rest of the genome? c. Suppose now that the interbreeding (still M-0.03) had been spread over 500 generations, starting with the mean you just calculated. Would the mean length of Neanderthal segments be longer or shorter than the 0.0005 given above? Why? (you can't calculate the number; just give a qualitative answer.
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