What is sexual reproduction?

Sexual reproduction is defined as a reproductive process that involves the combination of genetic material from two parents. This process typically involves the fusion of male and female gametes (sperm and egg) to produce offspring that are genetically unique, containing a mix of traits inherited from both parents. This genetic variation is vital for evolution and adaptation within species, as it allows for a diversity of traits that can improve survival in changing environments.

In contrast to the correct answer, the other options describe aspects of reproduction that do not involve genetic combination or multiple parents. For instance, a process involving a single parent refers to asexual reproduction, where offspring are genetically identical to the parent. Similarly, options indicating no genetic material is combined or leading to identical offspring align with methods like budding or fragmentation, which do not involve the genetic mixing characteristic of sexual reproduction. Hence, these options do not accurately convey the essence of sexual reproduction or its advantages.