Suppose you take a cell from an adult cow and attempt to produce a clone of that cow. Also suppose that, for some reason, telomerase is NOT functioning in that cell or in any cell that comes from it. What would you expect to happen with the clone?
a. The lack of telomerase should have no effect on the clone.
b. When the clone grows up, it will most likely have cancer.
c. The cell will never be able to divide at all.
d. The cell may divide, but after a certain number of divisions, cell division will stop.
Answer: d. The cell may divide, but after a certain number of divisions, cell division will stop.
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The endocrine gland that is often called the master gland because of its influential role in regulating the other endocrine glands is the
A) thyroid B) pineal C) adrenal D) pituitary
In a family pedigree that followed several
generations, Gaucher’s disease was found in family members every other generation and equally in males and females. Gaucher’s disease is most likely a ______ disease.
a. dominant b. recessive c. X-linked d. epistatic e. pleiotrophic
According to the figure most of the South in the United States is predicted to have
A) large increases in bird and mammal richness. B) large decreases in bird and mammal richness. C) no effect in bird and mammal richness. D) no effect in bird but large decreases in mammal richness.
Compared to malaria, schistosomiasis infections are ________ numerous and ________ deadly
a. less / less b. less / more c. more / less d. more / more