The origin of life Flashcards
(8 cards)
What are DNA
The main components of a cell include DNA, which carries the genetic code. DNA undergoes processes like replication, transcription, and translation
What did the Miller-Urey experiment demonstrate?
The Miller-Urey experiment demonstrated that basic materials needed for life, like amino acids, could be generated spontaneously under conditions mimicking early Earth
What are some theories about how the first primitive cell formed?
Some theories suggest biomolecules arose near hydrothermal vents, in mineral-rich tidal pools, or were transported to Earth from space via meteors
What is the panspermia hypothesis
The theory which suggests that the first biomolecules were transported to earth from space via meteors
How did the first proto-cell come about?
The first protocell may have formed when basic organic components polymerized and were encapsulated in a lipid bilayer, which can form spontaneously
What led to the evolution of diverse life forms on Earth?
The ability of nucleic acids to self-replicate and mutate led to the evolution of diverse life forms over time
What did the Miller-Urey experiment contain?
The Miller-Urey experiment contained water, ammonia, methane, and hydrogen, exposed to heat and an electric current
What did the Miller-Urey experiment produce?
The Miller-Urey experiment produced a number of different amino acids
