List three properties that all forms of cancers share and summarize the origin of these properties. What will be an ideal response?
ANSWER: The three properties that all forms of cancers share are (1) higher-than-normal rates of
mutation; (2) abnormalities of chromosome structure and number; and (3) one or more forms
of genomic instability, including the loss, duplications, deletions, and other abnormalities of
chromosomes. These changes are related to loss of the ability to repair DNA damage in
cancer cells.
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Which organisms should be used to run quality control for acid-fast stains?
a. Nocardia and Rhodococcus b. Streptomyces and Actinomadura c. Dermatophilus and Nocardiopsis d. Nocardia and Streptomyces
Resource partitioning can often be seen in similar species that occupy the same geographic area. These species avoid competition by living in different portions of the habitat or by utilizing different food or other resources and are called ____________ species.
A. sympatric B. allopatric C. competitive D. fundamental E. exploitative
In the absence of oxygen, yeast cells can obtain energy by fermentation, resulting in the production of _____
A) ATP, CO2, and ethanol (ethyl alcohol) B) ATP, CO2, and lactate C) ATP, NADH, and pyruvate D) ATP, pyruvate, and acetyl CoA
Which of the following characteristics is present in all chordates?
A. gills B. notochord C. vertebrae D. All of the above are correct.