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Core Videos - Praxis Science Content Knowledge (Sample - Phenotypes, Genotypes and Incomplete Dominance)

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Click below to play a sample Core Video from our Praxis Science: Content Knowledge (5435) Online Prep program.  This particular video focuses on understanding phenotypes, genotypes and incomplete dominance, a concept that appears frequently on the Praxis Science test.  

When you purchase any of our Praxis Science Content Knowledge Online Prep programs, you'll get Core Videos like this one covering every key Scientific Methodology, Techniques, and Development, Physical Sciences, Life Sciences, Earth Sciences, and Science, Technology, and Society concept you need to pass.  You'll learn the same key subject matter you would in our live classes, as well as strategies for success on the various multiple choice question types you can expect on the exam.  Then, once you are confident with the underlying subject matter, you can watch our Smart-STEM Virtual Tutoring videos, in which a tutor will show you how to apply your knowledge to the specific question types you are most likely to encounter on the actual test.

Both our Core Videos and Smart-STEM Virtual Tutoring videos are included in all our Online Prep programs!


Ready to get started?  Click below to enroll in Praxis Science Content Knowledge Online Prep and begin studying today!


Praxis Science Online Prep


These Core Videos Are Included in All Our Praxis Science (5435) Online Prep Programs...

Below is a complete list of the Core Videos that are included in all our Praxis Science Content Knowledge Online Prep programs.  These videos have been created by our industry-leading team of Teachers and Subject Matter Experts based on the official Content Specifications published for the Praxis Science: Content Knowledge (5435) exam, along with research and feedback from students and test takers, so you get an engaging, easy-to-use, and highly-focused program that makes the absolute most of your study time and teaches you the exact content knowledge and strategy you need to pass the exam.

  • Unifying Processes of Science
  • Developing Theories, Models and Laws
  • Process Skills
  • Systems of Measurement
  • Scientific Notation
  • Organization and Presentation of Data
  • Interepreting and Drawing Conclusions from Data in Tables, Graphs, Maps and Charts
  • Data and Error Analysis
  • Preparation, Storage, Use and Disposal of Lab Materials
  • Using Standard Equipment in the Lab and Field
  • Lab Safety and Emergency Procedures
  • Major Historical Developments in Science
  • Atoms, Elements, Molecules and Compounds
  • Physical and Chemical Changes
  • Physical Properties of Matter
  • How Chemical Subtances are Characterized by Physial Properties
  • States of Matter and the Role Energy Plays
  • Chemical Bonding, Reactivity and Position in the Periodic Table
  • The Basic Components within an Atom
  • Isotopes
  • The Principle of Conservation of Energy and Energy Transfer
  • The Direction of Heat Flow in a System
  • Principles of Conservation of Matter and Chemical Reactions
  • How Chemical Energy in Fuel is Transformed to Heat
  • The Transfer of Energy as Heat
  • The Methods of Heat Transfer
  • The Construction of Organization of the Periodic Table
  • Position in the Periodic Table and Elemental Characteristics
  • Experiments that Induce a Physical Change
  • Chemical Changes in Materials
  • Observable Properties of Acidic, Basic, and Neutral Solutions
  • Position, Distance and Displacement
  • Speed, Velocity, Acceleration and Time
  • Calculations for Linear and Ciruclar Motion
  • Newton's First Law
  • Newton's Second Law
  • Newton's Third Law
  • Forces that Act on a Body
  • Different Forces in Nature
  • Newton's Law of Universal Gravitation
  • Density, Sinking and Floating
  • Pressure, Fluid Flow and Buoyancy
  • Overview of Simple Machines
  • Mechanical Advantages for Inclined Planes
  • Mechanical Advantages for Levers
  • Mechanical Advantages for Pulleys
  • Electrostatic and Magnetostatic Phenomena
  • Attraction/Replusion Observations
  • Direction of Magnetic Fields
  • Electric Currents and Magnetic Fields
  • Series and Parallel Circuits
  • Power, Voltage Differences, Current, and Resistance in Simple Circuits
  • The Characteristics of Sound, Light, and Seismic Waves
  • Mechanical Waves
  • Electromagnetic Waves
  • Lenses and Optical Systems
  • The Laws of Reflection
  • The Laws of Refraction
  • Transmission of Light in Matter
  • Absorption or Reflection of Light in Matter
  • Role of Inorganic and Organic Compounds within Living Systems
  • Carbohydrates and Lipids in Living Organisms
  • Structure and Function of Organelles and Cells
  • Levels of Organization in Plants and Animals
  • Structures and Functions of Human Body Systems
  • Single-Celled and Multicellular Organisms, Mitosis, and Meiosis
  • Animal and Plant Cells, and the Energy of the Cell
  • Aerobic and Anaerobic Respiration
  • Photosynthesis and Respiration
  • Proteins and Nucleic Acids in Living Organisms
  • Protein Synthesis
  • DNA Replication
  • Coding of DNA and Expression of Traits
  • The Role of Dominant and Recessive Traits in Genetics and Evolution
  • Phenotypes, Genotypes and Incomplete Dominance
  • Monohybrid and Dihybrid Crossses
  • Mutations and Their Causes
  • Evolution and Natural Selection
  • Adaptation, Speciation and Extinction
  • The Life Processes of Various Plant Groups
  • Sexual and Asexual Reproduction
  • Population Types and Size
  • Flow of Matter and Energy through Ecosystems
  • Interrelationships within an Ecosystem
  • The Role fo Key Organisms within an Ecosystem
  • The Rock Cycle
  • Earth Materials as Resources
  • Density and Buoyance in Relation to Plate Tectonics
  • Types of Plate Boundaries
  • Volcanoes, Earthquakes, and Earth Resources Caused by Tectonic Processes
  • Various Factors in the Damage Caused by an Earthquake
  • Uniformitarianism and Catastrophism
  • Erosion, Deposition, and Transport
  • Effects of Natural Hazards and Human Responses
  • The Water Cycle
  • Relative and Absolute Dating Techniques
  • Major Events that Affected the Evolution of Life on Earth
  • The Effects of Air Movements on Weather
  • Weather Maps and Weather Patterns
  • Factors Affecting Climate
  • Chemical Composition and Physical Structure of the Universe
  • Structure of the Solar System and Its Place in the Galaxy
  • Stars' and Planets' Characteristics
  • Fusion in Stars
  • Paleontology
  • Eclipses, Lunar Phases, and Tides
  • The Calendar, Time Zones, and Seasons
  • Astronomical Instruments and Astronomical Units
  • Energy Resources
  • Renewable Resources
  • Extraction and Recycling
  • Sustainable Uses of Resources
  • Environmental Consequences of Resource Consumption
  • Science in Consumer Products
  • Science in Communication
  • Science in Agriculture
  • Forensic Science
  • Detrimental Impacts of Technology on the Environment
  • Personal Health

Enroll in Praxis Science C.K. Online Prep, and you can begin watching all these Core Videos right now!  You'll also get instant access to a host of other great features, including Smart-STEM Virtual Tutoring Videos in which an expert tutor will discuss each question from your full-length, Praxis Science Content Knowledge (Version 1) Practice Test, teaching you proven strategies for applying the subject matter knowledge you've gained from our Core Videos to the specific types of questions you are most likely to encounter on the real exam.

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