Biology, 27.12.2019 01:31 joyelewis58

Achemist is studying a macromolecule that has been isolated from a cell. which observation would provide the strongest evidence that the role of the macromolecule is to store genetic information?

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A macromolecule that can store genetic information must be a DNA or RNA molecule. So, the chemist can confirm if the macromolecule is DNA/RNA by using basic DNA/RNA detection methods. Some of them are

DNA precipitationUV- Vis Spectrophotometric analysis Fluorometric analysis DNA Gel electrophoresis

Explanation:

DNA/RNA precipitation: Precipitation method is a simple and straightforward method to test the presence of DNA/RNA in any sample. To perform this test, chilled ethanol is added in a double volume of sample with a 1/10 volume of sodium acetate. If the genetic material is present, it will precipitate in alcohol.

Spectrophotometric analysis: DNA/RNA absorbs UV light at 260nm wavelength. Thus, we can determine the presence of DNA by taking the 260/280 ratio through a spectrophotometer.

Fluorometric analysis: In this method, we can use any dye that can intercalate the DNA molecule. Later on, we can detect the dye signal using a fluorometric to confirm the presence of DNA.

Gel electrophoresis: DNA has a negative charge. In the gel-electrophoresis experiment, it will travel towards the positive electrode. Briefly, the macromolecule sample can be loaded on 0.8% agarose gel and stained with ethidium bromide. After 20 minutes, the chemist can check under UV light and if he sees a band, it confirms the presence of DNA/RNA.

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raits that your monster will have. the dna code for each trait is given, so you will need to go through the process of transcription and translation to determine what protein is being made and then match that with the corresponding trait. you may even include a picture of your monster if you are feeling creati

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I’m not exactly sure what your trying to ask, but if it’s how an organelle is similar to a body system or a part a nucleus is like a in function. but i don’t fully understand what you’re trying to ask

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Achemist is studying a macromolecule that has been isolated from a cell. which observation would pro...