9.2.05 () L 03

9.2.05 () L 03 - September 2 2005 – Origin of...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
September 2, 2005 – Origin of Life (Prokaryotes) Review: Miller and Urey were able to test experiment and create urea, HCN, simple sugars, nitrogen bases, amino acids He also found that in the presence of phosphate, complex molecules could also be formed. RNA too. Eigen discovered that RNA was a self replicating molecule and a catalyst. View ppt slide on RNA replication. He noticed that As attracted Us, Us As, Cs Gs, Gs s RNA is a Catalyst Cech and Altman discovered that RNA was a catalyst (ribozymes) Some functions of ribozymes: o Removal of introns o o Coding for proteins (tRNA) o Translation o Binding AAs to specific tRNAs. RNAs were in “The Primordial Soup” Catakysis Self-replication Familes of similar RNAs produced (from replication) HOWEVER, errors occur, which leads to molecular evolution Adapter Molecules Possible RNA Timeline 1 st RNA forms Learns to copy itself learns how to catalyze protein ynthesis
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 3

9.2.05 () L 03 - September 2 2005 – Origin of...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online