Campbell Biology
Second Canadian Edition
Chapter 15
The Chromosomal Basis of
Inheritance
Copyright © 2018 Pearson Canada Inc. 15 - 1
,Key Concepts (2 of 2)
• Alterations of chromosome number or structure cause
some genetic disorders
,Concept 15.4: Alterations of Chromosome Number or
Structure Cause Some Genetic Disorders
• Large-scale chromosomal alterations often lead to
spontaneous abortions (miscarriages) or cause a variety of
developmental disorders
• Plants tolerate such genetic changes better than animals
do
, Concept 17.5: Mutations of One or a Few Nucleotides
Can Affect Protein Structure and Function
• Mutations are changes in the genetic material of a cell or
virus
• If a mutation has an adverse effect on the phenotype of the
organism, the condition is referred to as a genetic disorder,
or hereditary disease
Second Canadian Edition
Chapter 15
The Chromosomal Basis of
Inheritance
Copyright © 2018 Pearson Canada Inc. 15 - 1
,Key Concepts (2 of 2)
• Alterations of chromosome number or structure cause
some genetic disorders
,Concept 15.4: Alterations of Chromosome Number or
Structure Cause Some Genetic Disorders
• Large-scale chromosomal alterations often lead to
spontaneous abortions (miscarriages) or cause a variety of
developmental disorders
• Plants tolerate such genetic changes better than animals
do
, Concept 17.5: Mutations of One or a Few Nucleotides
Can Affect Protein Structure and Function
• Mutations are changes in the genetic material of a cell or
virus
• If a mutation has an adverse effect on the phenotype of the
organism, the condition is referred to as a genetic disorder,
or hereditary disease
