1: Chemistry to Chromosomes

1.1: The Structure of DNA
1.2: Chromosomes and chromatin
If stretched to its full length, the DNA molecule of the largest human chromosome would be 85mm. Yet during mitosis and meiosis, this DNA molecule is compacted into a chromosome approximately 5µm long. Although this compaction makes it easier to transport DNA within a dividing cell, it also makes DNA less accessible for other cellular functions such as DNA synthesis and transcription.
1.3: Mitosis
- 1.3.1: DNA replication
1.4: In vitro applications of DNA replication
1.5: Genomes and variation