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KEAM DNA Packaging — practice questions

Explore 1 free DNA Packaging questions in KEAM Biology. Open each question or exercise to read its content, reference answers and available explanation.

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DNA Packaging questions and exercises with answers

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A **nucleosome** consists of:Read the answer and worked solution →

Worked practice questions

A **nucleosome** consists of:

  1. DNA wrapped around a histone octamer (H2A, H2B, H3, H4 — two of each)
  2. Eight DNA molecules around one histone
  3. Only DNA double helix
  4. Histones without any DNA
Show answer and solution

Correct answer: A. DNA wrapped around a histone octamer (H2A, H2B, H3, H4 — two of each)

A nucleosome = histone octamer (two each of H2A, H2B, H3, H4) with ~146–200 bp of DNA wound 1¾ turns around it. H1 protein binds the entry/exit DNA. Beads-on-a-string organisation of chromatin.

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