Cancer cell aneuploidy (the gain or loss of chromosomes) is most likely caused by
a defect in
A) RB.
B) p53.
C) Myc.
D) BCL2.
E) Mad.
Answer: E
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Most prokaryotic cells reside
A) on Earth's surface. B) in lakes, rivers, and oceans. C) in and on nonprokaryotic organisms (including humans and other animals). D) in the oceanic and terrestrial subsurfaces.
The presence of DNA is not one of the major characteristics of life. Why, then, might scientists look for the presence of DNA to help confirm the existence of life?
What will be an ideal response?
In the interaction of two types of organisms in a habitat, one organism benefits from its interaction with the other, but the other organism suffers. What is the name for this interaction?
a) destructive b) commensalism c) parasitism d) selective e) dependent
Hypothesis
What will be an ideal response?