Here's why:
* DNA carries genetic information: DNA contains the instructions for building and maintaining an organism. These instructions are passed down from generation to generation, determining traits like eye color, height, and susceptibility to certain diseases.
* Reproduction creates new individuals: Whether through sexual or asexual reproduction, new individuals are created with their own unique set of DNA.
* Inheritance of traits: The offspring inherits DNA from the parent(s), leading to the transmission of genetic traits.
Therefore, all forms of reproduction, both sexual and asexual, require the passing of DNA from parent to offspring.