Which of the following is not true of the sickle-cell allele? a)it became an important genetic factor after slash-and-burn agriculture was introduced b)it became an important genetic factor after fields were cleared that put humans near mosquitos c)it became an important genetic factor approximately 2000 years ago d)it provides a reproductive advantage to heterozygotes e)only homozygous normals will survive thanks to this trait
Which of the following is not true of the sickle-cell allele? a)it became an important genetic factor after slash-and-burn agriculture was introduced b)it became an important genetic factor after fields were cleared that put humans near mosquitos c)it became an important genetic factor approximately 2000 years ago d)it provides a reproductive advantage to heterozygotes e)only homozygous normals will survive thanks to this trait
Biology (MindTap Course List)
11th Edition
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Chapter16: Human Genetics And The Human Genome
Section16.6: Human Genetics, Society, And Ethics
Problem 1C
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Question
Which of the following is not true of the sickle-cell allele?
a)it became an important genetic factor after slash-and-burn agriculture was introduced
b)it became an important genetic factor after fields were cleared that put humans near mosquitos
c)it became an important genetic factor approximately 2000 years ago
d)it provides a reproductive advantage to heterozygotes
e)only homozygous normals will survive thanks to this trait
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