---
title: DNA Helix
id: geneticsresequenced:dna_helix
related_items: [geneticsresequenced:dna_helix]
type: item
---

**DNA Helices** each contain a specific Gene. By default this Gene is unknown, and must be identified using a [DNA Decryptor](@geneticsresequenced:dna_decryptor).

Each entity type has a specific set of possible Genes that they can provide. These Genes are also weighted, so some Genes are more likely to be obtained than others.

You can check what Genes a mob can provide using the [Gene Checker](@geneticsresequenced:gene_checker), using [EMI](https://www.curseforge.com/minecraft/mc-mods/emi), or checking the [mod's datapack](https://github.com/Berry-Club/Genetics-Resequenced/tree/NeoForge-1.21/src/generated/resources/data/minecraft/geneticsresequenced/entity_genes).

For example, a Cow has the following Gene weights:
- Basic: 5
- Eat Grass: 3
- Milky: 4

These weights add up to 12. That means decrypting a Cow DNA Helix has a 5/12 chance of having the Basic Gene, a 3/12 chance of having the Eat Grass Gene, and a 4/12 chance of having the Milky Gene.

Once a DNA Helix has been decrypted, it must be inserted into a [Plasmid](@geneticsresequenced:plasmid) in the [Plasmid Infuser](@geneticsresequenced:plasmid_infuser).