23andMe V2 Chip

[fusion_builder_container hundred_percent=”yes” overflow=”visible”][fusion_builder_row][fusion_builder_column type=”1_1″ last=”yes” spacing=”yes” center_content=”no” hide_on_mobile=”no” background_color=”” background_image=”” background_repeat=”no-repeat” background_position=”left top” hover_type=”none” link=”” border_position=”all” border_size=”0px” border_color=”” border_style=”” padding=”” margin_top=”” margin_bottom=”” animation_type=”” animation_direction=”” animation_speed=”0.1″ animation_offset=”” class=”” id=””][fusion_title size=”2″ content_align=”left” style_type=”single solid” sep_color=”” margin_top=”” margin_bottom=”” class=”” id=””]Background[/fusion_title][fusion_text]The 23andMe V2 chip was 23andMe’s second microarray chip. It replaced their V1 chip in September 2008. It was almost surely the Illumina HumanHap550 Genotyping BeadChip.

Microarray chips test a small percentage of SNPs on the human genome. Each letter the DNA code for the human genome (A, C, T, or G) is called a base pair. This one tested a total of 550,000 SNPs. Launched in the first quarter of 2006, it was designed using SNP markers selected from the HapMap and 1000 Genomes projects. Its intended use was medial genetics association studies (GWAS).[/fusion_text][fusion_text]

The number of SNP variants tested by chromosome
The number of SNP variants tested by chromosome

[etable style=”width:35%” left|right]
Chromosome|23andMe V2
1|43,734
2|46,065
3|38,255
4|33,970
5|34,586
6|37,660
7|30,877
8|31,474
9|26,880
10|29,817
11|27,868
12|27,915
13|21,281
14|18,669
15|16,983
16|17,271
17|15,153
18|16,859
19|10,105
20|14,362
21|8,336
22|8,666
X|13,828
Y|1,880
mt|2,019
Autosomal Total|556,786
Total|574,513
[/etable][/fusion_text][fusion_title size=”2″ content_align=”left” style_type=”single solid” sep_color=”” margin_top=”” margin_bottom=”” class=”” id=””]SNPs per Million Base Pairs – Heatmap[/fusion_title][fusion_text]The V2 chip tested 550,000 base pairs across the human genome. This heatmap shows how those SNPs are distributed across the 22 autosomal chromosomes and the X-chromosome. The ranges are for counts of tested SNPs in blocks of 1 million base pairs.[/fusion_text][fusion_imageframe lightbox=”yes” gallery_id=”” lightbox_image=”/wp-content/uploads/2016/09/23andMe-V2-Chip-Tested-SNPs-per-Million-bp.png” style_type=”dropshadow” hover_type=”none” bordercolor=”#e5e5e5″ bordersize=”1px” borderradius=”0″ stylecolor=”” align=”center” link=”” linktarget=”_self” animation_type=”0″ animation_direction=”down” animation_speed=”0.1″ animation_offset=”” hide_on_mobile=”no” class=”” id=””] [/fusion_imageframe][fusion_text]Created with Kitty Cooper’s Chromosome Mapping Tool[/fusion_text][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]

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