To give us an idea of the overall feeling of your brand, let us know which styles you lean towards
Simple, easily represented. Incorporate double helix and company name. Black and or white. Will include picture of idea I have. It needs refinement but would like to go with similar design. Possibly dividing helix into 3 like in picture to represent 3 brothers, but keeping left and right side either black and white and have centre section a slight different shade. Black, white or grey.
I like the bolder style text in picture but would look at others. Also possibly larger company name underneath logo.( larger than in picture provided)