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Presentation Unit 5 - The mitotic cell cycle Cambridge International AS and A Level Biology

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This document summarizes the key concepts of the mitotic cell cycle as covered in Unit 5 of Cambridge International AS and A Level Biology. It explains the stages of the cell cycle, including interphase, mitosis, and cytokinesis, along with the role of DNA replication and cell division. The presentation also highlights important processes such as chromosome behavior, checkpoints, and the significance of mitosis in growth and repair. It is a clear and structured resource aligned with exam requirements.

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Institution
CIE
Course
Unit 5 - The mitotic cell cycle

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THE MITOTIC
CELL CYCLE

, STRUCTURE OF A CHROMOSOME
A chromosome is a thread-like structure composed of DNA and
associated histone proteins, that carries genetic information. Here's
a breakdown of the components:
• DNA (Deoxyribonucleic Acid): carries genetic information in the
form of genes.
• Histone Proteins: around which the DNA is coiled to form a
structure called chromatin. This helps to package the DNA and
manage its structure.
• Sister Chromatids: After DNA replication, each chromosome
consists of two identical halves, called sister chromatids, joined
by a centromere.
• Centromere: The region where the two sister chromatids are
joined together. It's crucial during mitosis for the proper
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C. J. Clegg Cambridge International AS and A Level Biology
  • 2015
  • 9781471841477
  • Unknown

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Study Level
A/AS Level
Examinator
CIE
Subject
Biology
Unit
Unit 5 - The mitotic cell cycle

Document information

Uploaded on
April 23, 2026
Number of pages
9
Written in
2025/2026
Type
PRESENTATION
Person
Unknown

Subjects

  • biology
  • mitotic cell cycle
  • mitosis
  • cell
  • as level biology
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