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What Sort of Instrument Is Used to Determine the Parent-Daughter

question 69

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What sort of instrument is used to determine the parent-daughter ratio of isotopes, and what does it measure?

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Definitions:

Negative Control

A genetic control system in which a regulatory protein binds to DNA, turning off transcription of a gene. Compare with positive control.

Operon

In prokaryotes, a group of structural genes that are coordinately controlled and transcribed as a single message, plus their adjacent regulatory elements.

Protein Binding

The interaction between a protein and another molecule, which could be another protein, a small molecule, or DNA, critical for many biological processes.

cAMP Levels

Concentrations of cyclic adenosine monophosphate, a secondary messenger important in many biological processes including signal transduction and intracellular communication.

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