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
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True or False: There are a number of biological clocks and the circadian clock is just one of them
A. true B. false
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.
The proteins associated with DNA in chromosomes are ____
a. antigens b. albumins c. haptens d. histones e. centrioles
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)