25.1 origin of life Flashcards
1
Q
earliest evidence of life
A
3.5 billion yrs old
2
Q
how did life form?
A
1) synthesis of organic molecules (amino acids and nucleotides)
2) joining of these molecules into macromolecules (proteins and nucleic acids)
3) packaging these molecules into protobionts
4) origin of self replicating molecules