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Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson
Edition 8ISBN: 978-0077536848Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson
Edition 8ISBN: 978-0077536848 Exercise 7
The frequency of the sickle cell allele ( S ) is about 0.12 in African locales exposed to malaria but has dropped over about 15 generations to about 0.003 in places where malaria has been eradicated (USA). Given the mechanism for heterozygote advantage how long must malaria be suppressed in Africa before we would expect S to be purged
a. It will never be lost.
b. Less than 15 generations.
c. More than 15 generations.
d. Not enough information to predict.
a. It will never be lost.
b. Less than 15 generations.
c. More than 15 generations.
d. Not enough information to predict.
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Biology 8th Edition by Kenneth Mason ,Jonathan Losos,Susan Singer,Peter Raven,George Johnson
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