Answered: Deletions in the mitochondrial DNA can…

Name: Deletions in the mitochondrial DNA can result in parasitic mitochondri
Uploaded: 2024-03-20T06:42:55.000Z
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Description: Deletions in the mitochondrial DNA can result in parasitic mitochondria which do not respire but reproduce faster than normal mitochondria in a yeast cell. However, yeast cells that harvest energy only through fermentation multiply less slowly and h

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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Deletions in the mitochondrial DNA can result in parasitic mitochondria which do not respire but reproduce faster than normal mitochondria in a yeast cell. However, yeast cells that harvest energy only through fermentation multiply less slowly and have decreased fitness. When yeast cells containing varying populations of parasitic and normal mitochondria are grown in cultures with different cell densities over several generations, it is expected that

A. normal mitochondria will be rare in large yeast cell populations.

B. averaged across populations, yeast cells with normal mitochondria remained at intermediate levels.

C. parasitic mitochondria will be rare in large yeast cell populations.

D. parasitic mitochondria will be rare in small yeast cell populations.

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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