How could telomerase inhibitors be used to treat cancer? What will be an ideal response?
Cancer cells express a high level of telomerase. For this reason the cells can divide again and again
without the telomeres shrinking as would normal cells. Therefore, if you could inhibit telomerase in
cancer cells they may die after a number of divisions and not be immortal. However, there is some
danger as mice without telomerase aged prematurely and this could be a side-effect of treatment.
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Molecular techniques led to the reinterpretation of morphologically based phylogeny such that
A. Ecdysozoa and Lophotrochozoa were designated as clades. B. Bilateria was designated as a monophyletic group. C. annelids and arthropods were designated as closely related. D. rotifers and nematodes were designated as closely related. E. echinoderms and chordates were placed in entirely different clades.
Why is using heat to speed up biological reactions problematic?
What will be an ideal response?
One of the important inherited defects in the second line of immune defense is a condition called chronic granulomatous disease. What is this disease, and how is it caused?
What will be an ideal response?
The exit of an endospore causes the cell to
a. burst open b. return to dormancy c. lyse d. regenerate