... there is only a 2% chance of her giving birth to a child after having IVF treatment. However this is not so with the oldest living organism on the planet being 3000 years old - a tree, still producing saplings! How the number of eggs in a female declines throughout the years: At 16 weeks, the female foetus contains 7 millions eggs, however this number decreases as the cells die - apoptosis (cell death). By birth, nine weeks, a female baby has only 2 million eggs contained in her uterus. Despite these relatively large numbers, females only use 360 eggs in a lifetime, although as mentioned above, the eggs a female releases later in her life are much less fertile.> One way of combating this infertility in older women is to insert mitochondria from a donor egg into a recipitant egg, which means the cell has/can produce much more energy to divide and therefore develop ...

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