Respuesta :
The correct answer is:C) following ionization and transfer to a vacuum, a molecule's mass can be determined by migration in an electric field.Here's why:Option A (quantify mRNA levels):While mass spectrometry can be used to analyze biomolecules, it's not typically used for directly quantifying mRNA levels. Other techniques like quantitative real-time PCR (qPCR) are more commonly employed for that purpose.Option B (determine sequence of DNA): DNA sequencing technology primarily relies on enzymatic methods and doesn't involve mass spectrometry.Option C (determine molecule's mass using electric field): This is the core function of a mass spectrometer. It works by ionizing the sample molecules, separating them based on their mass-to-charge ratio (m/z) in an electric field, and then detecting them to determine their masses.Therefore, option C accurately describes the primary application of a mass spectrometer.(recheck this answer
