Bio 202 exam 1 stivia - Study guides, Class notes & Summaries

1. _________ gametes are formed by _________ in a diploid organism. - AnswerHaploid, meiosis The earth formed 4.55 billion years ago, but living organisms did not emerge for another billion years (3.5 BYA). - AnswerTrue It is thought that the first macromolecule in protobionts was RNA because - AnswerRNA can replicate itself and synthesize proteins. The Miller and Urey experiment showed - AnswerHow nucleotides and amino acids could be produced prior to the existence of cells Nucl...