Animated Tutorials: General Biology

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Meiosis	Mitosis
The Evolution of Cellular Organelles	Cellular Respiration
Reflex Arcs	Human Embryonic Stem Cells
The Ovarian and Uterine Cycles	Heat Changes Protein Structure
The Mammalian Kidney	Independent Assortment of Alleles
Construction of a DNA Library	Life Cycle of a Moss
Life Cycle of an Angiosperm	The Meselson-Stahl Experiment
Harvesting Light	Translation-Linked Protein Secretion
Life Cycle of HIV, a Retrovirus	Gel Electrophoresis
DNA Chip Technology	Independent Assortment and Gamete Diversity
Nonspecific Inflammatory Response	Simple Stimuli Trigger Fixed Behaviors
A Pulse-Chase Experiment	Vesicle Budding and Fusing
Time-Compensated Solar Compass	Electron Transport: Aerobic and Anaerobic Conditions
Measuring Blood Pressure	Blood Flow through the Human Heart
The Synapse	Carrier Proteins
Action Potentials	Polyribosomes
Properties of Water	Activation Energy and Enzymes
Mistakes in Meiosis	Mendel's Experiments
The Scientific Method	The lac Operon