Question

What do the .1, .2 or .3 indicate in the TAIR gene accession numbers? (e.g. AT2G19830.1)

Option 1: Different versions of the same gene.
Option 2: Chromosomal location.
Option 3: Protein size.
Option 4: Exon number.

Answer 1

The numbers .1, .2, or .3 in the TAIR gene accession numbers denote different versions of the same gene, reflecting updates or modifications in the gene's sequence information.

Step-by-step explanation:

The .1, .2, or .3 in the TAIR gene accession numbers represent different versions of the same gene. These numbers reflect updates or changes that have been made to the gene's sequence information in the database. When a gene sequence is updated due to new information or corrections, a new version number is assigned. Therefore, these decimals are not related to chromosomal location, protein size, or exon number but rather to the sequence versioning within the TAIR system.