ch10im - CHAPTER 10:THE NATURE OF THE GENE AND THE GENOME...

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

View Full Document Right Arrow Icon
C HAPTER 10:T HE N ATURE O F T HE G ENE A ND T HE G ENOME Introduction: After Watson and Crick A.  Since then, a major branch of molecular biology began to focus on the genome, which is the collective  body of genetic information that is present in a species B.  A genome contains all of the genes required to "build" a particular organism II.  During the past decade or so, labs around the world have uncovered the complete nucleotide sequences of  A.  We have the means to reconstruct the genetic path of human evolution by comparing corresponding  regions of the genomes in related organisms from a common ancestor which have remained constant which have been free to drift randomly as time passed The Concept of a Gene as a Unit of Inheritance I.  Science of genetics began in 1860s with the work of Gregor Mendel (friar at the abbey of St. Thomas located  in today's Czech Republic; his lab was a small garden plot on the grounds of the abbey A.  Mendel crossed pea plants & found the inheritance pattern of defined traits; when he started, he evidently  had a clear experimental plan in mind pattern by which these characteristics were transmitted to the offspring 2.  He chose the garden pea for a number of practical reasons, including that he could buy a variety of  seeds that would give rise to plants with distinct characteristics C.  He crossbred   plants through   several generations     counted   the number   of individuals   with various traits D.  After several years of research, he published   his findings in 1865   in journal of Natural History Society of  Brünn, Austria; lost until rediscovered independently in 1900 by 3 botanists who gave him credit
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 note was uploaded on 09/10/2008 for the course BIO 201 taught by Professor Janicke during the Spring '08 term at SUNY Buffalo.

Page1 / 37

ch10im - CHAPTER 10:THE NATURE OF THE GENE AND THE GENOME...

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