Podcast
Questions and Answers
Approximately how much DNA is present in an entire human body?
Approximately how much DNA is present in an entire human body?
- $2 \times 10^{12}$ km
- $10^{11}$ km
- $10^{12}$ km
- $2 \times 10^{11}$ km (correct)
What is the primary purpose of DNA supercoiling in cells?
What is the primary purpose of DNA supercoiling in cells?
- To fit DNA into the nucleus
- To allow for DNA replication and transcription (correct)
- To increase the melting point of DNA
- To increase the stability of DNA
What is the term for the coiling of a coil in DNA?
What is the term for the coiling of a coil in DNA?
- Supercoiling (correct)
- Strand separation
- Underwinding
- Overwinding
What happens to the DNA axis when it is underwound?
What happens to the DNA axis when it is underwound?
What is the function of topoisomerases in DNA supercoiling?
What is the function of topoisomerases in DNA supercoiling?
What is the charge of DNA?
What is the charge of DNA?
What is the primary reason for the negative charge of the phosphate-sugar backbone in DNA?
What is the primary reason for the negative charge of the phosphate-sugar backbone in DNA?
What is the result of DNA wrapping around a histone core?
What is the result of DNA wrapping around a histone core?
How much is DNA compacted in eukaryotic cells?
How much is DNA compacted in eukaryotic cells?
What is the structure formed by the compaction of nucleosomes?
What is the structure formed by the compaction of nucleosomes?
During which stage of the cell cycle is DNA most highly condensed?
During which stage of the cell cycle is DNA most highly condensed?
What is the term for the organization of DNA and associated proteins in eukaryotic cells?
What is the term for the organization of DNA and associated proteins in eukaryotic cells?
What is the typical size range of a prokaryotic cell?
What is the typical size range of a prokaryotic cell?
Which type of cell usually has a single chromosome and one or more plasmids?
Which type of cell usually has a single chromosome and one or more plasmids?
What is the typical range of base pairs in a prokaryotic cell's DNA?
What is the typical range of base pairs in a prokaryotic cell's DNA?
What is the term for the compact, coiled structure of DNA in prokaryotic cells?
What is the term for the compact, coiled structure of DNA in prokaryotic cells?
Which type of cell typically has linear chromosomes?
Which type of cell typically has linear chromosomes?
What is the term for the bead-like structure formed by DNA wrapping around histone proteins?
What is the term for the bead-like structure formed by DNA wrapping around histone proteins?
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