An inherited disease results from abnormal mitochondria passed from mother to child. Using your knowledge of mitochondria's function within human cells, which of the following is the most likely description of the symptoms of this disease?
a) color blindness
b) inability to absorb iron, resulting in extreme anemia
c) extreme sensitivity to mutagens such as x-rays and sunlight, increasing the chance of cancer
d) fragile bones and arthritis
e) extreme muscle weakness
Ans: e) extreme muscle weakness
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Due to the slow and varied growth rates, mycobacteria are commonly grouped into either slow growing or very slow growing, which has consequences on the growth medium selected for culturing
Indicate whether the statement is true or false.
The phenomenon of chance events causing the allele frequencies in a population to change unpredictably is known as
____.
a. genetic drift b. gene flow c. deleterious mutations d. nonrandom mating e. natural selection
The amount of dissolved oxygen in the water is an important factor used to assess the health of a lake. What is the relationship between the temperature of the water and the concentration of dissolved oxygen?
A) Cooler water temperatures prevent oxygen from being dissolved in the water. B) Warmer water temperatures decrease the amount of oxygen that can be dissolved in the water. C) Water temperature does not affect the amount of oxygen dissolved in the water. D) Warmer water temperatures increase the amount of oxygen that can be dissolved in the water.
Social Darwinism is a(n):
A) idea that evolutionary competition in human society, as well as the natural world, weeded out the unfit and advanced humanity. B) belief that sacred authority called for hard work, saving, thrift, and honesty as necessary for salvation. C) set of movements and concepts related to ideas of transmutation of species or evolution. D) union of ideas from several social specialties which provides a widely accepted account of evolution.