DNA in cooked food is denatured (broken into bits and pieces) due to heat
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Cooking food denatures the proteins and breaks down the cell structures, potentially damaging the DNA. The high temperatures used in cooking can degrade and fragment the DNA, making it difficult to extract intact DNA for analysis. Additionally, enzymes that break down DNA may be present in cooked food, further complicating the extraction process.
Red blood cells do not have a nucleus or organelles, which are essential for DNA extraction. Without a nucleus, RBCs lack the DNA needed for extraction. White blood cells, on the other hand, do have a nucleus and contain DNA, making them suitable for DNA extraction.
It is difficult to extract DNA from fat tissue because of the high lipid content in the cells. Lipids can interfere with the DNA extraction process by binding to the DNA and preventing it from being isolated effectively. Specialized protocols and reagents are needed to remove the lipids and extract the DNA successfully from fat tissue.
The function of phenol-chloroform is to denature proteins and extract DNA into the organic phase, while the function of isopropanol is to precipitate DNA by causing it to become insoluble in the solution.
the benefit to extract DNA from banana IS TO PRODUCE NEW AND MORE RAPID POPULATION OF FRUITS
Food gets DNA from the plants and animals that it comes from. Plants have DNA in their cells, and animals inherit their DNA from their parents. When we eat food, we consume the DNA contained within it.