It helps us know the genetics of genes.
It would be uracil (C)
thymine would be complementary to adenine in DNA but because it is RNA it is replaced by uracil.
Answer:
So the egg definitely came first.
Explanation:
Dinosaurs laid eggs, the fish that first crawled out of the sea laid eggs, and the weird articulated monsters that swam in the warm shallow seas of the Cambrian Period 500 million years ago also laid eggs. They weren't chicken's eggs, but they were still eggs.
The scenario listed that could be a mutation that causes members of a population to die out would be the genetic
