If Bacteria Transformed with a Recombinant PUC18 Plasmid Produce White

question 4

Multiple Choice

If bacteria transformed with a recombinant pUC18 plasmid produce white colonies when grown on plates containing ampicillin and Xgal, which of the following is least likely?

• A) They produce functional fi- galactosidase that cleaves X- gal.
• B) They carry a vector with the bla gene used as the selectable marker.
• C) They carry a vector with a lacZ gene that has been disrupted and rendered nonfunctional.
• D) They carry a vector that contains a DNA fragment inserted into the multiple cloning site.
• E) They produce fi- lactamase that provides resistance to ampicillin.

Understand the processes involved in the carbon cycle and the importance of carbon dioxide in ecosystems.

Understand the composition and characteristics of the Earth's atmosphere.

Identify and describe the principal components and processes of the nitrogen cycle.

Recognize and explain the factors that influence global climate patterns, including the effect of Earth's tilt on seasons.

---

Definitions:

Scores Correlate

A statistical relationship indicating that as scores on one measure increase, scores on another measure either increase or decrease systematically.

Reliability

The consistency and stability of a measurement or test over time or different conditions.

Major Topics

The primary or most significant subjects of discussion, study, or interest within a particular field or context.

SAT Achievement Tests

Standardized tests administered by the College Board designed to measure high school students' academic readiness for college.