# Function: inBackbone()

[**lifecycle-kit**](https://jonbogaty.com/lifecycle-kit/api/readme/index.md)

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[lifecycle-kit](https://jonbogaty.com/lifecycle-kit/api/readme/index.md) / [chem](https://jonbogaty.com/lifecycle-kit/api/chem/readme/index.md) / inBackbone


# Function: inBackbone() {#function-inbackbone}


> **inBackbone**(`template`, `backbone`): `Record`\<`string`, `number`\>

Defined in: [chem/biochemistry.ts:197](https://github.com/jbcom/lifecycle-kit/blob/074e4e7b8038d3e2de9eb44c4b5b5aee0ef02b48/src/chem/biochemistry.ts#L197)

The formula for a tissue, expressed in this world's backbone.

Templates are written in terms of a backbone atom rather than carbon
specifically, so the same tissue means the same thing structurally on any
world — a "protein" is a chain with nitrogen and sulfur attached, whatever
the chain is made of.


## Parameters {#parameters}



### template {#template}


`Record`\<`string`, `number`\>


### backbone {#backbone}


[`Backbone`](https://jonbogaty.com/lifecycle-kit/api/chem/type-aliases/backbone/index.md)


## Returns {#returns}


`Record`\<`string`, `number`\>