Which biotechnology tool allows many copies of a specific section of DNA to be made very rapidly?
A. DNA library production
B. DNA sequencing
C. DNA library screening
D. Electrophoresis
E. Polymerase chain reaction
Answer: E. Polymerase chain reaction
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Which of the following is a net product of glycolysis? Select all correct choices
A. 2 pyruvate B. 2 ATP C. 2 NADH
Which of the following is a restriction placed on DNA polymerase?
A. DNA polymerase can attach new nucleotides only in the 5' to 3' direction. B. DNA polymerases must begin synthesis using an RNA primer. C. DNA polymerases must have a template strand to copy from. D. All of these are restrictions of DNA polymerase
Define paedomorphosis and allometric growth, and briefly explain how each contributes to the process of
macroevolution. What will be an ideal response?
In a regulatory cascade, control at termination requires that
a. one early gene encodes a sigma factor that activates late genes. b. expression of host genes must be inactivated. c. all expressed genes be transcribed as a single polycistronic unit. d. early genes must be switched off before middle or late genes can be expressed. e. the transcription units be adjacent to each other.