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Questions and Answers
What is the primary organizational structure of chromosomal DNA?
What is the primary organizational structure of chromosomal DNA?
- Tightly wound coils held by histones
- Loops held together by large protein rings (correct)
- Linear strands without any folding
- Random tangles of DNA
What are the two main types of chromatin described in the text?
What are the two main types of chromatin described in the text?
- Active and inactive chromatin
- Condensed and decondensed chromatin
- Euchromatin and heterochromatin (correct)
- Transcribed and non-transcribed chromatin
What happens to chromosome loops when the genes within them are expressed?
What happens to chromosome loops when the genes within them are expressed?
- They remain unchanged
- They decondense or unwind (correct)
- They condense further
- They become more tightly wound
How are mitotic chromosomes described in the text?
How are mitotic chromosomes described in the text?
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How are mammalian interphase chromosomes organized in the nucleus?
How are mammalian interphase chromosomes organized in the nucleus?
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How are euchromatin and heterochromatin distributed in mammalian interphase chromosomes?
How are euchromatin and heterochromatin distributed in mammalian interphase chromosomes?
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What happens to chromosome loops when the genes within them are not expressed?
What happens to chromosome loops when the genes within them are not expressed?
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Which of the following statements is true about chromosome loops?
Which of the following statements is true about chromosome loops?
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What is the spatial relationship between euchromatin and heterochromatin in the nucleus?
What is the spatial relationship between euchromatin and heterochromatin in the nucleus?
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Which of the following statements is not supported by the text?
Which of the following statements is not supported by the text?
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