A Physics Student Looks into a Microscope and Observes That

question 53

Multiple Choice

A physics student looks into a microscope and observes that small particles suspended in water are moving about in an irregular motion.Which of the following statements is the best explanation for this observation?

• A)Water molecules strike the particles giving them the same average kinetic energy as the water.
• B)The particles are carried by convection currents in the water.
• C)The small particles may be considered a fluid;and thus,move about randomly.
• D)The actual motion is regular,but the speeds of particles are too large to observe the regular motion.
• E)The particles are moving to be uniformly distributed throughout the volume of the water.

Recognize the use of microarray analysis to detect gene expression differences between conditions.

Understand the role of selectable markers in recombinant DNA technology.

Identify and explain the significance of palindromic sequences and restriction sites in DNA.

Appreciate the role of DNA ligase in DNA replication and recombinant DNA processes.

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Definitions:

Research Instrument

A tool or mechanism used to collect, measure, and analyze data for research purposes.

Measurement Device

An instrument used to quantify physical properties or to assess performance across various parameters.

Research Plan

is a detailed outline that specifies steps and methods designed to achieve specific goals through a systematic investigation or study.

Decision Support System

Computer programs and information systems that support complex decision-making and problem-solving activities.