Lecture 9

Lecture 9 - Lecture 9 A. Transition from Chemistry to...

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

View Full Document Right Arrow Icon
Lecture 9 A. Transition from Chemistry to Biology Life on the Earth originated in a series of steps, each which seems reasonably likely, eventually DNA, fats, carbohydrates and all sorts of other chemicals are recruited into life as we know it o Lead to the first cells and those capable of reproducing themselves B. Cellular Complexity- Carl Woese recognized a unique group of prokaryotes the Achaea, that are genetically and structurally distinct from bacteria Three domain system- based on genetic sequencing and gives another data set in understanding the interrelations among organisms o Naturally delineates organisms based upon their cell type Every living organism belongs either to one of the two branches of prokaryotes of Eukaryote C. Prokaryotes or Eukaryote- Prokaryotes- small cell size, DNA dispersed in nucleoid region and the cell type cannot form complex multicellular organism Eukaryotes- large cell size, has nucleus with DNA, and cells can combine to form
Background image of page 1

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

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

This document was uploaded on 04/25/2008.

Page1 / 2

Lecture 9 - Lecture 9 A. Transition from Chemistry to...

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