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Questions and Answers
What is the first step in the packaging of DNA?
What is the first step in the packaging of DNA?
Double helix
What is the second step in the packaging of DNA?
What is the second step in the packaging of DNA?
DNA is wrapped around histone proteins to form nucleosomes.
What is the third step in the packaging of DNA?
What is the third step in the packaging of DNA?
Multiple nucleosomes condense to form coiled chromatin fibers.
What is the fourth step in the packaging of DNA?
What is the fourth step in the packaging of DNA?
What is the fifth step in the packaging of DNA?
What is the fifth step in the packaging of DNA?
Flashcards
DNA double helix
DNA double helix
The basic structure of DNA, shaped like a twisted ladder.
Histones
Histones
Proteins that DNA wraps around to form nucleosomes.
Nucleosomes
Nucleosomes
DNA wrapped around histone proteins.
Chromatin fibers
Chromatin fibers
Linked nucleosomes that create a thread-like structure.
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Chromatin coiling
Chromatin coiling
The process of chromatin fibers tightening into a compact structure.
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Chromosome formation
Chromosome formation
The final stage of DNA packaging, where chromatin becomes highly condensed.
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DNA Packaging
- DNA is in a double helix form
- DNA is wrapped around histone proteins, forming nucleosomes
- Multiple nucleosomes are coiled into chromatin fibers
- The chromatin fibers are attached to a protein scaffold, and further coiled
- The coils and folds form chromosomes
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