Accumulating variations in living individuals ensures that these variations do not have immediately detrimental effects. This gradual process allows for the preservation of functional traits while introducing novel variations over time.

Sexual reproduction involves the combination of DNA from two different individuals during reproduction. Since each individual has accumulated a unique set of variations, the combination of their genetic material results in novel combinations of variants, fostering genetic diversity within populations.

The difficulty arises from the potential accumulation of twice the amount of DNA in each new generation, which could disrupt the control of the cellular apparatus by the DNA.

Reproductive modes that allow for the generation of more variation, such as sexual reproduction, increase the pool of genetic diversity within a population. This diversity acts as a reservoir of potential traits, promoting the survival of the species by increasing ...

While DNA copying mechanisms are not absolutely accurate, they are precise enough to ensure the functionality of most DNA copies. The slow pace of generating variation is due to the need for a balance between introducing variability and maintaining functional ...

Variations resulting from DNA copying errors contribute to genetic diversity within populations. In a changing environment, this diversity enhances the adaptability of the population, ensuring some individuals have traits that may be advantageous for survival.

The copying of DNA during cell division involves processes like DNA replication, and while mechanisms are in place to maintain accuracy, occasional errors, mutations, can occur.