One of the main genetic engineering and biotechnology definitions in biotechnology courses is about DNA structure and function and how to manipulate it for a special purpose and usually students asked; is DNA really a Double helix?
Double helix is the description of the structure of a DNA molecule. A DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating groups of sugar (deoxyribose) and phosphate groups.