What's the Difference Between the Proteins?

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Nature conserves the sites of these proteins that are important for it is job. Usually we see up to 70% level conserved identity across all modern versions. When you travel back in time, the identity decreases. But still 60% shared information over 4 billion years. We have good reason to think that it existed at the dawn of life.

Betül Kaçar is an astrobiologist at University of Wisconsin. Please support this podcast by checking out our sponsors:
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OUTLINE:
Here’s the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time.
(00:00) – Introduction
(08:20) – History of life on Earth
(16:25) – Origin of life
(39:11) – Genetic language of life
(52:08) – Life and energy
(1:02:50) – Ancient DNA
(1:21:48) – Evolution
(1:33:19) – Alien life
(2:01:19) – Panspermia
(2:07:41) – Restarting life on Earth
(2:20:23) – Where ideas come from
(2:27:54) – Science and language
(2:36:31) – Love
(2:37:55) – Advice to young people
(2:42:29) – Meaning of life