LO 7.1: I can explain how life started on Earth through RNA world hypothesis and research evolution on MMM organism
Do Now:
- In the evolution of life, what came first: DNA or protein?
Protein because RNA likely coded for proteins before DNA.
- Pick the right word to complete the sentence
The very first life must have been prokaryote, anaerobic, and likely contained RNA as the heritable material. The first life was simple, thus a prokaryote, anaerobic, and likely contained RNA.
RNA World Hypothesis The RNA world hypothesis suggests that a self-replicated RNA formed as the first organism. Self-replicating RNA replicated and multiplied in the primoradial soup. As RNA competed with each other, organisms evolved into DNA, and thereafter, modern animals.
Miller-Urey Experiment A Miller-Urey experiment attempts to explain the origins of life by replicated the conditions the first organism may have began in.
At the end of one week of continuous experiment, Miller and Urey observed organic compounds from originally inorganic compounds.