It appears that infection by Plasmodium is negative for Anopheles. We also showed in class that the mosquito immune system can be upregulated to limit or terminate Plasmodium infection of these mosquitoes. So why don’t we see natural selection to upregulate the mosquito’s immune system and get rid of that parasite? Best explanation.Upregulating the immune system comes at the cost of shortening life span and thus (most probably) reproductive successHaving a Plasmodium infection is negative for the mosquito, but it protects against much worse pathogensUpregulation of the immune system in Plasmodium leads to more rapid development of Plasmodium, causing even greater problems for AnophelesStatement is wrong. This upregulation was done with genetic engineering in a lab. Alleles to do something like that do not exist in nature

Plasmodium is a unicellular, parasitic protozoa which cause disease in humans. Plasmodium sp.…

Answered: It appears that infection by Plasmodium…

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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It appears that infection by Plasmodium is negative for Anopheles. We also showed in class that the mosquito immune system can be upregulated to limit or terminate Plasmodium infection of these mosquitoes. So why don’t we see natural selection to upregulate the mosquito’s immune system and get rid of that parasite? Best explanation.

Upregulating the immune system comes at the cost of shortening life span and thus (most probably) reproductive success

Having a Plasmodium infection is negative for the mosquito, but it protects against much worse pathogens

Upregulation of the immune system in Plasmodium leads to more rapid development of Plasmodium, causing even greater problems for Anopheles

Statement is wrong. This upregulation was done with genetic engineering in a lab. Alleles to do something like that do not exist in nature

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

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