This genome browser visualizes gene positions along a linear genome sequence, with genes drawn as colored rectangles that animate downward into place above and below a central axis based on their forward or reverse direction. The SVG rendering uses D3.js to bind gene data from a JSON file, while tick marks at 100, 500, and 1,000 base-pair intervals are animated with staggered transitions. The code relies on `d3.json` for data loading, `transition().duration()` for sequential animations, and `attr("transform")` to position tick groups. The genome length is fixed at 7,800 base pairs, with gene labels fading in after the rectangles settle.