5 Questions
What is the approximate length of DNA double helix in a typical mammalian cell?
2.2 metres
What are the positively charged, basic proteins responsible for organizing DNA in eukaryotes?
Histones
How is DNA packaged in a prokaryotic cell like E. coli?
Organized in large loops held by proteins in a region termed as 'nucleoid'
What is the charge of the amino acid residues lysine and arginine in histones?
Positive
How can the number of base pairs in E. coli DNA be calculated if the length of E. coli DNA is 1.36 mm?
$\frac{1.36 \text{ mm}}{0.34 \times 10^{-9} \text{ m/bp}}$
Test your knowledge of DNA packaging with this quiz. Explore the calculation of DNA double helix length in mammalian cells and understand the significance of the distance between base pairs.
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