How many mutations do your cells have?

A human cell has about 3 billion base pairs of DNA.

The rate of substitution mutations in cells is about 1 per 108 (800 million) base pairs of nucleotides.

Therefore, each cell division yields about 3.75 mutations.

Your average cell has divided about 47 times from a single zygote.

After 47 divisions, your average somatic cell has accumulated about 176 mutations.

You have 100 trillion (1014) somatic cells (chapter 13).

You have a total of 2,800 trillion, or 2.8 quadrillion (2.8 x 1015) mutations in your cells, not counting gametes.

This also does not count insertions, deletions, and other chromosomal damages.

©
Copyleft Peter Chen