Unlike germline cells in males, egg cells in mammals, including primates, are not continuously produced throughout life. Instead, a finite pool of egg cells is established during embryonic development and these cells undergo minimal DNA replication until ovulation, which occurs periodically during a female's reproductive life.

This unique characteristic provides some protection against the accumulation of mutations in egg cells due to DNA replication errors and other factors. Since the egg cells are formed early in development, they are less exposed to environmental insults and potentially mutagenic factors that can accumulate over time.

Although the resting state of egg cells offers some protection, it does not completely eliminate the risk of mutations. Some genetic changes can still occur due to natural processes like DNA damage and repair, as well as environmental factors such as radiation or certain toxins.

As female primates age, their egg cells are exposed to these potential mutagens for a longer period, increasing the likelihood of accumulating harmful mutations. This can have implications for the health and viability of offspring conceived later in life, contributing to the phenomenon of age-related decline in female fertility and increased risk of certain genetic disorders.

Therefore, while egg cells in aging primates may benefit from a limited number of DNA replication cycles compared to male germline cells, they are not completely protected from the effects of genetic mutations associated with aging.