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A-LevelBiologyNucleic acids and protein synthesis9700/12 · Feb/Mar 2024 · Q201 Mark

During sperm formation in mammals, part of the structure of each chromosome is replaced with proteins called protamines. This replacement allows the DNA to be packaged much more densely than would otherwise be possible. Which part of the chromosome is replaced by protamines?

Acentromeres
Bchromatids
Chistones
Dtelomeres

✓ Correct answer

C: histones

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Topic
Nucleic acids and protein synthesis, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source
A-Level Biology, Feb/Mar 2024 Paper 1 Variant 2, question 20.

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