What if the genetic alphabet had more letters?

如果遗传字母表有更多字母怎么办？

The English alphabet has 26 letters, and the genetic alphabet has four.

英文字母表有 26 个字母， 遗传字母表有 4 个。

The price of reading a million letters of the genetic alphabet has fallen roughly a million-fold since the start of the millennium.

自2000年以来，读取100万个基因字母的价格已经下降了大约100万倍。

These four letters of the genetic alphabet combine in various sequences to form the instructions for building all life on Earth.

遗传字母表中的这四个字母以不同的顺序组合，形成构建地球上所有生命的指令。