Segments of eukaryotic DNA that can move or be copied from one site to another in the genome are called
A) exons.
B) plasmids.
C) transposable elements.
D) vectors.
Answer: C
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Cancer is a disease of cell division
A. true B. false
Which element is not considered an essential micronutrient for plants in general, but is required by horsetails and
perhaps some grasses such as wheat?
a. gold b. boron c. silicon d. zinc e. magnesium
What is the relationship between the Golgi apparatus and the plasma membrane?
A. The plasma membrane stops the products of the Golgi apparatus from leaving the cell. B. The membranes of the Golgi apparatus and the plasma membrane are continuous. C. The finished products of the Golgi apparatus may leave the cell through vesicles that fuse with the plasma membrane. D. The Golgi apparatus begins the formation of the lipids that make up plasma membranes.
A community is composed of
A) potentially interacting populations of different kinds of organisms. B) one species of organism living in a specific environment on Earth. C) living organisms and their nonliving environment. D) the factors that constitute an organism's niche.