Although the earth’s creatures differ widely, the code that controls many of their inherited characteristics is very stable and has served to maintain the distinction between basic kinds of creatures down through the ages.
دی‌اِن‌اِی در تولیدمثل همهٔ موجودات زنده بر زمین از میکروب گرفته تا علف ،‏ فیل ،‏ نهنگ آبی و بشر نقش بسزایی دارد .‏