The first level of DNA packaging is a nucleosome, which is comprised of histone proteins and DNA wrapped around the latter. The second level is a chromatosome, which is comprised of nucleosomes and H1 histones. The third level is a solenoid fiber, which is a helical structure of tightly packed nucleosomes. The fourth level is a scaffold of the solenoid fiber, which is created through loops in the fiber, which creates a chromatin structure. A chromatin structure is decondensed through condensing enzymes, which segregate the tightly packed regions by working on the protein complexes involved in DNA packaging.
Describe the four levels of chromatin structure, and explain how chromatin is decondensed to allow transcription.
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Academic.Tips. (2022) 'Describe the four levels of chromatin structure, and explain how chromatin is decondensed to allow transcription'. 11 December.
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Academic.Tips. (2022, December 11). Describe the four levels of chromatin structure, and explain how chromatin is decondensed to allow transcription. https://academic.tips/question/describe-the-four-levels-of-chromatin-structure-and-explain-how-chromatin-is-decondensed-to-allow-transcription/
References
Academic.Tips. 2022. "Describe the four levels of chromatin structure, and explain how chromatin is decondensed to allow transcription." December 11, 2022. https://academic.tips/question/describe-the-four-levels-of-chromatin-structure-and-explain-how-chromatin-is-decondensed-to-allow-transcription/.
1. Academic.Tips. "Describe the four levels of chromatin structure, and explain how chromatin is decondensed to allow transcription." December 11, 2022. https://academic.tips/question/describe-the-four-levels-of-chromatin-structure-and-explain-how-chromatin-is-decondensed-to-allow-transcription/.
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Academic.Tips. "Describe the four levels of chromatin structure, and explain how chromatin is decondensed to allow transcription." December 11, 2022. https://academic.tips/question/describe-the-four-levels-of-chromatin-structure-and-explain-how-chromatin-is-decondensed-to-allow-transcription/.
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"Describe the four levels of chromatin structure, and explain how chromatin is decondensed to allow transcription." Academic.Tips, 11 Dec. 2022, academic.tips/question/describe-the-four-levels-of-chromatin-structure-and-explain-how-chromatin-is-decondensed-to-allow-transcription/.