Defects in which of the following structures are responsible for a condition called "exercise intolerance," where individuals suffer extreme fatigue from minimal exertion?

A. mitochondrion
B. ribosome
C. endoplasmic reticulum
D. Golgi apparatus
E. lysosome


Answer Key: A

Biology & Microbiology

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A. true B. false

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Answer the following statements true (T) or false (F)

1. Somatic cell mutations are heritable. 2. Mutations can produce a polypeptide with increased function. 3. The timing of a mutation during development has negligible effects on the severity of the genetic defect. 4. Larger genes are usually more likely to incur a mutation than smaller genes.

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The proteins associated with DNA in chromosomes are ____

a. antigens b. albumins c. haptens d. histones e. centrioles

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Male birds often perform a special dance or set of physical displays to attract females. This would be an example of a behavioral isolation mechanism.

Answer the following statement true (T) or false (F)

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