A Technique Called Flow Cytometry Is Used by Scientists and Researchers

question 70

Multiple Choice

A technique called flow cytometry is used by scientists and researchers to count or sort cells based on specific properties. By labeling cellular DNA with a fluorescent dye, flow cytometry can sort cells based on the amount of DNA present, thereby making it possible to distinguish between cells that are in different stages of the cell cycle. Flow cytometry is especially useful to the medical community because it can help with the diagnosis of certain types of cancers. Below is a typical set of data that you might obtain when running a flow cytometry experiment using a sample of healthy skin cells. Use this figure to help you answer the following questions. After reading the paragraph below, answer the questions that follow.
-In this sample of cells, what stage of the cell cycle are most of the cells in?

• A) G1
• B) S
• C) G2
• D) mitosis

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Definitions:

Complex Tones

Complex tones consist of multiple frequencies or harmonics combined, which contribute to the richness and timbre of sounds, playing an essential role in the perception of music and speech.

Combination Of Frequencies

A combination of frequencies refers to the mixing or merging of different frequencies, often in the context of sound, radio waves, or signal processing, to generate new waveforms or effects.

Threshold Of Hearing

The lowest intensity level of sound that can be detected by the human ear, varying among individuals and frequencies.

Picometers

A unit of length in the metric system equal to one trillionth of a meter, used to measure extremely small distances.