
External
Online Open Genetics
Genetics is the scientific study of heredity and the variation of inherited characteristics. It includes the study of genes, themselves, how they function, interact, and produce the visible and measurable characteristics we see in individuals and populations of species as they change from one generation to the next, over time, and in different environments.
- Author
- Todd Nickle and Isabelle Barrette-Ng
- Publisher
- Mount Royal University & University of Calgary
- Source
- LibreTexts
- License
- CC BY-SA
- Language
- EN
- Category
- Basic Sciences
Contents· 126 sections
- 01: Overview DNA and Genes
- 1.01: Overview
- 1.02: DNA is the Genetic Material
- 1.03: The Structure of DNA
- 1.04: Genes are the Basic Units of Inheritance
- 1.05: The Function of Genes
- 1.06: The Nuclear Genome
- 1.07: Model Organisms Facilitate Genetic Advances
- 1.E: Overview DNA and Genes (Exercises)
- 1.S: Overview DNA and Genes (Summary)
- 02: Chromosomes Mitosis and Meiosis
- 2.01: DNA is Packaged into Chromatin
- 2.02: Mitosis
- 2.03: Meiosis
- 2.04: The Cell Cycle and Changes in DNA Content
- 2.05: Karyotypes Describe Chromosome Number and Structure
- 2.06: Polyploidy Arises from Changes in Whole Sets of Chromosomes
- 2.07: Endoreduplication
- 2.08: Gene Balance
- 2.09: Organellar Genomes
- 2.E: Chromosomes Mitosis and Meiosis (Exercises)
- 2.S: Chromosomes Mitosis and Meiosis (Summary)
- 03: Genetic Analysis of Single Genes
- 3.01: Mendels First Law
- 3.02: Relationships Between Genes Genotypes and Phenotypes
- 3.03: Biochemical Basis of Dominance
- 3.04: Crossing Techniques Used in Classical Genetics
- 3.05: Sex-Linkage- An Exception to Mendels First Law
- 3.06: Phenotypes May Not Be As Expected from the Genotype
- 3.07: Phenotypic Ratios May Not Be As Expected
- 3.E: Genetic Analysis of Single Genes (Exercises)
- 3.S: Genetic Analysis of Single Genes (Summary)
- 04: Mutation and Variation
- 4.01: Mutation and Polymorphism
- 4.02: Origins of Mutations
- 4.03: Genetic screening for mutations- Forward genetics
- 4.04: Types of Mutations
- 4.05: Some mutations may not have detectable phenotypes
- 4.06: Complementation tests and Allelism
- 4.07: Example of Human Mutations
- 4.E: Mutation and Variation (Exercises)
- 4.S: Mutation and Variation (Summary)
- 05: Pedigrees and Populations
- 5.01: Prelude to Pedigrees and Populations
- 5.02: Pedigree Analysis
- 5.03: Inferring the Mode of Inheritance
- 5.04: Sporadic and Non-Heritable Diseases
- 5.05: Calculating Probabilities
- 5.06: Population Genetics
- 5.E: Pedigrees and Populations (Exercises)
- 5.S: Pedigrees and Populations (Summary)
- 06: Genetic Analysis of Multiple Genes
- 6.01: Dihybrid Crosses
- 6.02: Epistasis and Other Gene Interactions
- 6.03: Example of Multiple Genes Affecting One Character
- 6.E: Genetic Analysis of Multiple Genes (Exercises)
- 6.S: Genetic Analysis of Multiple Genes (Summary)
- 07: Linkage and Mapping
- 7.01: Linkage
- 7.02: Recombination
- 7.03: Linkage Reduces Recombination Frequency
- 7.04: Crossovers Allow Recombination of Linked Loci
- 7.05: Inferring Recombination From Genetic Data
- 7.06: Genetic Mapping
- 7.07: Mapping With Three-Point Crosses
- 7.E: Linkage and Mapping (Exercises)
- 7.S: Linkage and Mapping (Summary)
- 08: Techniques of Molecular Genetics
- 8.01: Prelude to Molecular Genetics
- 8.02: Isolating Genomic DNA
- 8.03: Isolating or Detecting a Specific Sequence by PCR
- 8.04: Cutting and Pasting DNA- Restriction Digests and DNA Ligation
- 8.05: Cloning DNA - Plasmid Vectors
- 8.06: DNA Analysis - Gel Electrophoresis
- 8.07: DNA Analysis- Blotting and Hybridization
- 8.08: Transgenic organisms
- 8.09: Techniques of Molecular Genetics (Exercises)
- 8.S: Techniques of Molecular Genetics (Summary)
- 09: Changes in Chromosome Number and Structure
- 9.01: Changes in Chromosome Number
- 9.02: Changes in Chromosome Structure
- 9.03: Chromosome Abnormalities in Humans
- 9.04: Diagnosing Human Chromosome Abnormalities
- 9.E: Changes in Chromosome Number and Structure (Exercises)
- 9.S: Changes in Chromosome Number and Structure (Summary)
- 10: Molecular Markers and Quantitative Traits
- 10.01: Some Variations in the Genome Affect Complex Traits
- 10.02: Origins of Molecular Polymorphisms
- 10.03: Classification and Detection of Molecular Markers
- 10.04: Applications of Molecular Markers
- 10.05: Quantitative Trait Locus (QTL) Analysis
- 10.E: Molecular Markers and Quantitative Traits (Exercises)
- 10.S: Molecular Markers and Quantitative Traits (Summary)
- 11: Genomics and Systems Biology
- 11.01: Omics Technologies
- 11.02: DNA Sequencing
- 11.03: Whole Genome Sequencing
- 11.04: Functional Genomics Determining Function(s)
- 11.E: Genomics and Systems Biology (Exercises)
- 11.S: Genomics and Systems Biology (Summary)
- 12: Regulation of Gene Expression
- 12.01: The lac Operon
- 12.02: The Use of Mutants to Study the lac Operon
- 12.03: Eukaryotic Gene Regulation
- 12.04: Regulatory Elements in Evolution
- 12.05: Additional Levels of Regulating Transcription
- 12.06: Epigenetics
- 12.07: Regulation of Gene Expression (Exercises)
- 12.S: Regulation of Gene Expression (Summary)
- 13: Cancer Genetics
- 13.01: Classification of Cancers
- 13.02: Cancer Cell Biology
- 13.03: Hallmarks of Cancer
- 13.04: Mutagens and Carcinogens
- 13.05: Oncogenes
- 13.06: Tumor Suppressor Genes
- 13.07: The Poster Boy of Genetic Research Leading to a Cancer Treatment Gleevec (Imatinib)
- 13.E: Cancer Genetics (Exercises)
- 13.S: Cancer Genetics (Summary)
- 14: Appendices
- 14.01: Why Use Nomenclature
- 14.02: Biochemistry of GeneBehavior
- 14.03: Basic Nomenclature
- 14.04: Three-Letter Symbols
- 14.05: Linked Genes
- 14.06: Summary