Before the advent of biotechnology, diabetics would use insulin harvested from cows. Now they receive human insulin produced through ________.

A. gel electrophoresis
B. gene therapy
C. PCR
D. recombinant DNA technology


Answer: D

Biology & Microbiology

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The disaccharide shown above is ____

a. sucrose b. maltose c. lactose d. cellulose e. fructose

Biology & Microbiology

Which of the following statements is(are) true about

prokaryotic cells? a. They are the smallest known cells. b. They are the most metabolically diverse forms of life. c. They exploit the energy resources in nearly all environments. d. They exploit raw materials in nearly all environments. e. All of the above are true.

Biology & Microbiology

Increased levels of stress and trauma may enhance the release of cortisol

Indicate whether the statement is true or false

Biology & Microbiology

Which of the following describes a feature found in bacterial expression vectors but not in cloning vectors?

(a) origin of replication (b) cleavage sites for restriction nucleases (c) promoter DNA sequences (d) a polyadenylation signal

Biology & Microbiology