Which Experimental Technique Would Be Useful in Determining Whether a Particular

question 240

Multiple Choice

Which experimental technique would be useful in determining whether a particular chemical signal is a juxtacrine or a paracrine signal?

• A) Chemical analysis of the signal molecule
• B) Observations of the behavior of single cells
• C) Gene expression analysis
• D) Analysis of extracellular fluid surrounding cells
• E) Analysis of blood from nearby capillaries

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Definitions:

Specimen

A sample of tissue, blood, or another substance taken for examination or analysis.

Nucleic Acid

Biological macromolecules, such as DNA or RNA, that are essential for all known forms of life, containing the genetic instructions.

Prion

A type of infectious agent made up of protein in a misfolded form, which is known to cause a number of neurodegenerative diseases.

Protein

Large molecules composed of one or more long chains of amino acids, essential for the structure, function, and regulation of the body's cells, tissues, and organs.