A solution registers 12 on the pH scale. This solution is:

The nucleic acids carried by viruses usually consist of

A. DNA. B. RNA. C. either DNA or RNA. D. both DNA and RNA simultaneously.

How do negative regulators such as the Lac repressor prevent RNA polymerase from initiating transcription?

A) by blocking the ribosome binding site B) by forming a loop in the operator that restricts the passage of the polymerase C) by physically blocking the DNA binding site of RNA polymerase D) by binding to the polymerase to inhibit its catalytic activity

Which level(s) of structure can be found in this protein?

a. primary only b. primary and secondary c. primary, secondary, and tertiary d. primary, secondary, tertiary, and quaternary

The pancreas, kidneys, and Duodenum are found in what space?

A. Intraperitoneal B. Interperitoneal C. Retroperitoneal D. Pleuralperitoneal