Скачать или смотреть GCSE Biology AQA - Meisosis and Fertilisation [2026 Biology Paper 2]

All of Paper 2 Playlist:
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-Video suitable for AQA foundation and higher tier levels

This video covers AQA Biology syllabus section 4.6.1.2 (Meiosis). We'll explore how meiosis reduces chromosome numbers in gametes and how fertilisation restores the full complement. The video explains the meiotic process: genetic information copying, two divisions producing four genetically different gametes each with a single chromosome set, followed by fertilisation restoring normal chromosome numbers and subsequent mitotic divisions for embryo development and cell differentiation. Note that detailed knowledge of meiosis stages is not required for this specification.

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Timestamps:
00:00 Introduction and episode roadmap
00:24 Why gametes need half chromosomes
01:06 Meiosis process overview and stages
02:39 Genetic variation from meiosis
03:10 Fertilization and embryo development
03:37 Importance summary and next episode

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