Answered: Describe the significance of sickle…

Describe the significance of sickle cell anemia to understanding evolution and the role of culture in adaptation, and explain why it’s a great example of a balanced polymorphism.

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

Chapter19: Evolutionary Change In Populations

Section: Chapter Questions

Problem 15TYU

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Concept explainers

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.

Question

Describe the significance of sickle cell anemia to understanding evolution and the role of culture in adaptation, and explain why it’s a great example of a balanced polymorphism.

Expert Solution

Step 1

Sickle Cell Disease

It is an autosomal recessive disorder. It causes symptoms like anemia, joint pain, a swollen spleen, etc. In this condition, the red blood cells are sickle or crescent moon-like shapes. These abnormal-shaped RBCs are not able to carry oxygen throughout your body.

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