Biology Animations
Prokaryotic Protein Synthesis
Peptide Bond Formation
Transcription
Meiosis
Mitosis
DNA Replication: Nucleotide Polymerization
Replication of a Chromosome
DNA Replication: Coordination of Leading- and Lagging-Strand Synthesis
Meiotic Recombination Between Unlinked Genes
Meiotic Recombination Between Linked Genes
Meselson-Radding Model of Crossing-Over
Genetic Consequences of the Meselson-Radding Model
Molecular Interaction Between Alleles: Wild Type
Molecular Interaction Between Alleles: Homozygous Recessive, Null Mutation
Molecular Interaction Between Alleles: Homozygous Recessive, Leaky Mutation
Molecular Interaction Between Alleles: Heterozygous, Complete Dominance
Nonsense Suppression I: Nonsense Mutation
Nonsense Suppression II: tRNA Nonsense Suppressor
Nonsense Suppression III: Suppression of the Nonsense Mutation
The Streisinger Model of Mutation
UV-Induced Photodimers and Excision Repair
Meiotic Nondisjunction at Meiosis I
Meiotic Nondisjunction at Meiosis II
Formation of Paracentric Inversions
Meiotic Behavior of Paracentric Inversions
Formation of Reciprocal Translocations
Meiotic Behavior of Reciprocal Translocations
Pseudolinkage of Genes by Reciprocal Translocations
Making a Library of Wild Type DNA
Cloning Genes by Functional Complementation
Using a Cloned Gene to Probe for mRNA
Synthesizing an Oligonucleotide Microarray
Using an Oligonucleotide Microarray to Analyze Patterns of Gene Expression
The Lac Operon
The Lac Operon: Oc lac Operator Mutations
The Lac Operon: I- Lac Repressor Mutations
The Lac Operon: IS Lac Super-Repressor Mutations
Bacterial Conjugation
Detecting RFLPs
RFLP Analysis
Replicative Transposition
Autotetraploid Meiosis
Screening Mutations
Gene Interactions in Drosophila: Cell Signaling in Dorsal-Ventral Axis Formation