An ideal vector
A. may be a plasmid or bacteriophage.
B. has a restriction enzyme recognition site.
C. contains an origin of replication.
D. contains a selectable marker.
E. All of the choices are correct.
E. All of the choices are correct.
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The giant interconnected global ecosystem is called the
A. global community. B. biosphere. C. ecosphere. D. trophic web.
What two structures must interact in order to translate an mRNA into a polypeptide?
a. Ribosomes and tRNA b. DNA and amino acids c. tRNA and mRNA d. Ribosomes and DNA e. Amino acids and ribosomes
Microbes that do not colonize the human host, but instead are lost rapidly are referred to as _____
Fill in the blank(s) with the appropriate word(s).
A serious genetic disorder known as hemochromatosis is often called the rusty organ disease and affects nearly 1.5 million Americans. The disorder causes increased absorption of intestinal iron. Which organ is responsible for iron homeostasis?
A. spleen B. brain C. lungs D. liver E. gallbladder