People with two copies of the sickle cell gene are often quite ill with sickle cell anemia, while those with two copies of normal hemoglobin are likely t become quite ill with malaria where it occurs. Heterozygotes suffer few effects of sickle cell anemia, and are considerably resistant to malaria. In are- where malaria occurs, it exerts on the human population. O A. Directional selection O B. Disruptive selection O C. Bimodal selection O D.Stabilizing selection O E. None of the above K Question 20 of 120
People with two copies of the sickle cell gene are often quite ill with sickle cell anemia, while those with two copies of normal hemoglobin are likely t become quite ill with malaria where it occurs. Heterozygotes suffer few effects of sickle cell anemia, and are considerably resistant to malaria. In are- where malaria occurs, it exerts on the human population. O A. Directional selection O B. Disruptive selection O C. Bimodal selection O D.Stabilizing selection O E. None of the above K Question 20 of 120
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
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:People with two copies of the sickle cell gene are often quite ill with sickle cell anemia, while those with two copies of normal hemoglobin are likely to
become quite ill with malaria where it occurs. Heterozygotes suffer few effects of sickle cell anemia, and are considerably resistant to malaria. In areas
where malaria occurs, it exerts
on the human population.
O A. Directional selection
O B. Disruptive selection
O C. Bimodal selection
O D.Stabilizing selection
O E. None of the above
«< Question 20 of 120
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