IB Biology Sub-topic D2.1 Notes

This page contains our IB Biology notes for sub-topic D2.1. By reading each one of these notes, you will fully cover the content for IB Biology 'Cell division'.

All Topic 2 Sub-topics

(HL)A2.1: Origins of cells

A2.2: Cell Structure

(HL)A2.2: Further cell structure

(HL)A2.3: Viruses

B2.1: Membranes And Transport

(HL)B2.1: Further membranes and transport

B2.2: Organelles & Compartmentalisation

(HL)B2.2: Further organelles

B2.3: Cell Specialisation

(HL)B2.3: Further cell specialisation

(HL)C2.1: Chemical signalling

C2.2: Neural Signalling

(HL)C2.2: Further neural signalling

D2.1: Cell Division

(HL)D2.1: Cell cycle

(HL)D2.2: Gene expression

D2.3: Water Potential

(HL)D2.3: Further water potential

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Cell division

In this topic, you are expected to know about cell division to produce daughter cells. The division of the nucleus for this occurs one of two ways:

Mitosis - the division of the nucleus into two genetically identical daughter nuclei. This occurs in autosomal cells to produce more autosomal cells.
Meiosis - the division of the nucleus into four genetically distinct daughter nuclei. This occurs to sex cells to produce gametes.

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