Transcript Pierce Genetics: A Conceptual Approach 3e

Benjamin A. Pierce
GENETICS
A Conceptual Approach
FOURTH EDITION
CHAPTER 1
Introduction to Genetics
© 2012 W. H. Freeman and Company
Chapter 1 Outline
• 1.1 Genetics Is Important to Us Individually, to
Society, and to the Study of Biology, 2
• 1.2 Humans Have Been Using Genetics for
Thousands of Years, 7
• 1.3 A Few Fundamental Concepts Are Important
for the Start of Our Journey into Genetics, 11
Chapter 1: Introduction to Genetics
• The importance of genetics
• The history of genetics
• The fundamental terms and principles of
genetics
1.1 Genetics Is Important to Individuals,
to Society, and to the Study of Biology
• Genes influence our lives
• Genes contribute to personality
• Genes are fundamental to who and what we
are
Genome
• A genome is a complete set of genetic
instructions for any organism.
Division of Genetics
• Transmission genetics
• Molecular genetics
• Population genetics
Model Genetic Organisms
• Model genetic organisms are organisms with
characteristics that make them useful for genetic
analysis.
Common characteristics of
model organisms
•
Short generation time.
•
Production of numerous progeny.
•
The ability to carry out controlled genetic crosses.
•
The ability to be reared in a laboratory environment.
•
The availability of numerous genetic variants.
•
An accumulated body of knowledge about their
genetic systems.
Concept Check 1
What are some of the implications of all
organisms having similar genetic systems?
a. That all life forms are genetically related
b. That research findings on one organism’s gene
function can often be applied to other organisms
c. That genes from one organism can often exist and
thrive in another organism
d. All of the above
Concept Check 1
What are some of the implications of all
organisms having similar genetic systems?
a. That all life forms are genetically related
b. That research findings on one organism’s gene
function can often be applied to other organisms
c. That genes from one organism can often exist and
thrive in another organism
d. All of the above