# Create Biological Samples

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The Prep tab is deprecated and no longer available. For run planning and sequencer integration, see the [Run Planning](https://help.connected.illumina.com/basespace/sequence/plan-runs) section.
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## Create Biological Samples

Complete the following steps to create biological samples one at a time. For information about adding multiple samples, see [Import Biological Samples](https://help.connected.illumina.com/basespace/sequence/plan-runs/prep-tab/import-biosamples-prep-tab).

1. Select the Prep tab, and then select Biological Samples.
2. Select Create.
3. Provide the following information:
   * Sample ID—Enter a unique sample ID.
   * Name—Enter a descriptive name for the biological sample.
   * \[Optional] Species—Select a species from the drop-down list.
   * Project—Select Select Project to select or create a project to add your samples to. The selected project is the default project that contains biosample data output.
   * Nucleic Acid—Select the type of nucleic acid.
4. \[Optional] Select additional samples as follows.
   1. Select Save & Continue Later.
   2. Select the checkbox for each sample you want to use.
5. Select Prep Libraries.

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BaseSpace Sequence Hub converts sample name underscores to dashes in the output FASTQ files. To avoid unexpected FASTQ file names, use only alphanumeric characters and dashes in sample names.
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