Describe how tumor-suppressor genes keep cells in check
What will be an ideal response?
Tumor-suppressor genes generate gene products that regulate cell cycle checkpoints and may initiate apoptosis. When these genes suffer mutations their ability to regulate cell cycle and apoptosis is lost resulting in tumrigenesis.
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Directly on the underside of the fruiting body of a mushroom, you will find __________
a. hyphae b. mycelia c. seeds d. spores
Some plants are able to endure frequent flooding events because they form
A. adventitious roots that reach above the surface of the water. B. more xylem. C. an extra layer of spongy mesophyll. D. an extra porous epidermal tissue.
The sebaceous glands associated with hair follicles produce ________
A) sweat B) sebum C) androgens D) keratin
There doesn't appear to be much diversity in the cell cycle processes of the Archaea, therefore Sulfolobus serves as an excellent model for all other Archaea.
Answer the following statement true (T) or false (F)