Life on Earth: At a Glance

Life on Earth
Audesirk & Audesirk
Prentice-Hall, Inc.

Gregor Mendel and the Origin of Genetics: Doing it right: The secrets of mendel's success.

Inheritance of Single Traits: The Law of Segregation
The inheritance of dominant and recessive alleles on homologous chromosomes can explain the results of mendel's monohybrid crosses.
Mendel's hypothesis can be used to predict the outcome of new types of single-trait crosses.

Inheritance of Multiple Traits: Independent Assortment

Inheritance Patterns of Genes Located on the Same Chromosome
Genes on the same chromosome tend to be inherited together.
Crossing over may separate linked genes.
The frequency of crossing over between linked genes can be used to map the location of genes on a chromosome.

The Inheritance of Sex and Sex-Linked Genes
Sex linkage is a special case of linkage between genes on the same chromosome.

Variations on the Mendelian Theme
In incomplete dominance, the phenotype of heterozygotes is intermediate between the phenotypes of the homozygotes.
There may be multiple alleles of a single gene.
Many traits are influenced by several genes.
A single gene may have multiple effects on phenotype.
The environment influences the expression of all genes.

The Molecular Basis of Mendelian Genetics

Reflections on Genetic Diversity and Human Welfare
Inheritance of Single Traits: The Law of Segregation: The inheritance of dominant and recessive alleles on homologous chromosomes can explain the results of mendel's monohybrid crosses.
Mendel's hypothesis can be used to predict the outcome of new types of single-trait crosses.

Inheritance of Multiple Traits: Independent Assortment

Inheritance Patterns of Genes Located on the Same Chromosome
Genes on the same chromosome tend to be inherited together.
Crossing over may separate linked genes.
The frequency of crossing over between linked genes can be used to map the location of genes on a chromosome.

The Inheritance of Sex and Sex-Linked Genes
Sex linkage is a special case of linkage between genes on the same chromosome.

Variations on the Mendelian Theme
In incomplete dominance, the phenotype of heterozygotes is intermediate between the phenotypes of the homozygotes.
There may be multiple alleles of a single gene.
Many traits are influenced by several genes.
A single gene may have multiple effects on phenotype.
The environment influences the expression of all genes.

The Molecular Basis of Mendelian Genetics

Reflections on Genetic Diversity and Human Welfare; Mendel's hypothesis can be used to predict the outcome of new types of single-trait crosses.

Inheritance of Multiple Traits: Independent Assortment

Inheritance Patterns of Genes Located on the Same Chromosome
Genes on the same chromosome tend to be inherited together.
Crossing over may separate linked genes.
The frequency of crossing over between linked genes can be used to map the location of genes on a chromosome.

The Inheritance of Sex and Sex-Linked Genes
Sex linkage is a special case of linkage between genes on the same chromosome.

Variations on the Mendelian Theme
In incomplete dominance, the phenotype of heterozygotes is intermediate between the phenotypes of the homozygotes.
There may be multiple alleles of a single gene.
Many traits are influenced by several genes.
A single gene may have multiple effects on phenotype.
The environment influences the expression of all genes.

The Molecular Basis of Mendelian Genetics

Reflections on Genetic Diversity and Human Welfare
Inheritance of Multiple Traits: Independent Assortment
Inheritance Patterns of Genes Located on the Same Chromosome: Genes on the same chromosome tend to be inherited together.
Crossing over may separate linked genes.
The frequency of crossing over between linked genes can be used to map the location of genes on a chromosome.

The Inheritance of Sex and Sex-Linked Genes
Sex linkage is a special case of linkage between genes on the same chromosome.

Variations on the Mendelian Theme
In incomplete dominance, the phenotype of heterozygotes is intermediate between the phenotypes of the homozygotes.
There may be multiple alleles of a single gene.
Many traits are influenced by several genes.
A single gene may have multiple effects on phenotype.
The environment influences the expression of all genes.

The Molecular Basis of Mendelian Genetics

Reflections on Genetic Diversity and Human Welfare; Crossing over may separate linked genes.
The frequency of crossing over between linked genes can be used to map the location of genes on a chromosome.

The Inheritance of Sex and Sex-Linked Genes
Sex linkage is a special case of linkage between genes on the same chromosome.

Variations on the Mendelian Theme
In incomplete dominance, the phenotype of heterozygotes is intermediate between the phenotypes of the homozygotes.
There may be multiple alleles of a single gene.
Many traits are influenced by several genes.
A single gene may have multiple effects on phenotype.
The environment influences the expression of all genes.

The Molecular Basis of Mendelian Genetics

Reflections on Genetic Diversity and Human Welfare; The frequency of crossing over between linked genes can be used to map the location of genes on a chromosome.

The Inheritance of Sex and Sex-Linked Genes
Sex linkage is a special case of linkage between genes on the same chromosome.

Variations on the Mendelian Theme
In incomplete dominance, the phenotype of heterozygotes is intermediate between the phenotypes of the homozygotes.
There may be multiple alleles of a single gene.
Many traits are influenced by several genes.
A single gene may have multiple effects on phenotype.
The environment influences the expression of all genes.

The Molecular Basis of Mendelian Genetics

Reflections on Genetic Diversity and Human Welfare
The Inheritance of Sex and Sex-Linked Genes: Sex linkage is a special case of linkage between genes on the same chromosome.

Variations on the Mendelian Theme
In incomplete dominance, the phenotype of heterozygotes is intermediate between the phenotypes of the homozygotes.
There may be multiple alleles of a single gene.
Many traits are influenced by several genes.
A single gene may have multiple effects on phenotype.
The environment influences the expression of all genes.

The Molecular Basis of Mendelian Genetics

Reflections on Genetic Diversity and Human Welfare
Variations on the Mendelian Theme: In incomplete dominance, the phenotype of heterozygotes is intermediate between the phenotypes of the homozygotes.
There may be multiple alleles of a single gene.
Many traits are influenced by several genes.
A single gene may have multiple effects on phenotype.
The environment influences the expression of all genes.

The Molecular Basis of Mendelian Genetics

Reflections on Genetic Diversity and Human Welfare; There may be multiple alleles of a single gene.
Many traits are influenced by several genes.
A single gene may have multiple effects on phenotype.
The environment influences the expression of all genes.

The Molecular Basis of Mendelian Genetics

Reflections on Genetic Diversity and Human Welfare; Many traits are influenced by several genes.
A single gene may have multiple effects on phenotype.
The environment influences the expression of all genes.

The Molecular Basis of Mendelian Genetics

Reflections on Genetic Diversity and Human Welfare; A single gene may have multiple effects on phenotype.
The environment influences the expression of all genes.

The Molecular Basis of Mendelian Genetics

Reflections on Genetic Diversity and Human Welfare; The environment influences the expression of all genes.

The Molecular Basis of Mendelian Genetics

Reflections on Genetic Diversity and Human Welfare
The Molecular Basis of Mendelian Genetics
Reflections on Genetic Diversity and Human Welfare

Designed in cooperation with Andrew Stull and Steven Brunasso.

Last Update - July 25, 1997