Did you know that if you stretched out the DNA from just one of your cells, it would be two metres long? How on earth does your body cram that much information into a space you can’t even see without a microscope—and then copy it flawlessly millions of times a day?

In this episode of GCSE Science Unlocked, Lottie and Mr. H dive deep into Section 4.1.2.1: Chromosomes. Mr. H issues some crucial "Mark Scheme Warnings" as they break down the structural hierarchy of DNA, debunk a common textbook myth about those famous "X" shapes, and map out the exact three-stage process of the cell cycle.

🎧 What You'll Learn in This Episode:

• The Packaging Miracle: How two metres of loose "spaghetti" DNA is meticulously coiled into chromosomes inside eukaryotic nuclei.
• The Inv ...