GRE Subject Test: Biology Help - Learn by Concept

Learn by Concept

Concepts

• GRE Subject Test: Biology

  • Animal Biology

    • Animal Development

      • Understanding Determination and Differentiation

      • Understanding Fertilization and Early Development

      • Understanding Organogenesis

    • Circulatory System

      • Understanding Circulatory Functions

      • Understanding Circulatory Structures

    • Digestive System

      • Understanding Digestive Functions

      • Understanding Digestive Structures

    • Endocrine System

      • Understanding Glands and Target Organs

      • Understanding Hormone Functions

    • Immunobiology

      • Understanding Antibodies and Antigens

      • Understanding Immunological Cells

      • Understanding Immunological Processes

    • Musculoskeletal System

      • Understanding Musculoskeletal Functions

      • Understanding Musculoskeletal Structures

    • Nervous System

      • Understanding Action Potentials and Ion Channels

      • Understanding Nervous System Functions

      • Understanding Nervous System Structures

    • Reproductive System

      • Understanding Gametogenesis

      • Understanding Reproductive Functions

      • Understanding Reproductive Structures

    • Respiratory System

      • Understanding Respiratory Functions

      • Understanding Respiratory Structures

  • Cell Biology

    • Cell Membrane and Organelles

      • Cell Membrane and Cell Wall+5 topics

        • Understanding Cell Junctions

        • Understanding Membrane Functions

        • Understanding Membrane Proteins

        • Understanding Membrane Structure

        • Understanding the Cell Wall

      • Other Organelles+6 topics

        • Understanding Lysosomes and Peroxisomes

        • Understanding Mitochondria and Chloroplasts

        • Understanding Ribosomes

        • Understanding the Cytoskeleton

        • Understanding the Golgi Body and Endoplasmic Reticulum

        • Understanding the Nucleus

    • Cell Metabolism

      • Understanding Fermentation

      • Understanding Glycolysis

      • Understanding Photosynthesis

      • Understanding Storage of Macromolecules

      • Understanding the Electron Transport Chain

      • Understanding the Krebs Cycle

    • Macromolecules

      • Other Macromolecules+3 topics

        • Understanding Carbohydrates

        • Understanding Lipids

        • Understanding Nucleic Acids

      • Proteins+3 topics

        • Understanding Protein and Enzyme Function

        • Understanding Protein Structure

        • Understanding Receptors

    • The Cell Cycle

      • Understanding Cell Division, Mitosis, and Meiosis

      • Understanding Cycle Regulation

      • Understanding the Cell Cycle

  • Divisions of Life and Viruses

    • Animalia

      • Identifying Animals

      • Understanding Types of Animals

    • Archaea

      • Identifying Archaea

      • Understanding Archaea

    • Bacteria

      • Identifying Bacteria

      • Understanding Bacteria

    • Fungi

      • Understanding Fungal Life Cycle and Reproduction

      • Understanding Fungal Structures

      • Understanding Types of Fungi

    • Plantae

      • Understanding Alternation of Generations

      • Understanding Types of Plants

    • Protista

      • Identifying Protists

      • Understanding Protists

      • Understanding Roles of Protists

    • Viruses

      • Understanding Animal and Plant Viruses

      • Understanding Bacteriophages

      • Understanding Viral Life Cycles and Replication

  • Ecology

    • Environmental Ecology

      • Understanding Chemical Cycles

      • Understanding Environmental Impacts

    • Organismal Ecology

      • Understanding Community Ecology

      • Understanding Food Webs and Food Chains

      • Understanding Mating and Social Interactions

      • Understanding Population Ecology

      • Understanding Trophic Energy

  • Evolution and Mutations

    • Evolutionary Factors

      • Understanding Genetic Drift

      • Understanding Hardy-Weinberg Equilibrium

      • Understanding Natural Selection and Fitness

    • Evolutionary History

      • Understanding Land Adaptations

    • Mutations and Variability

      • Understanding Polymorphisms

      • Understanding Types of Mutation

    • Speciation

      • Understanding Divergent and Convergent Evolution

      • Understanding Phylogenetics

      • Understanding Speciation

      • Understanding Types of Speciation

  • Genetics, DNA, and Molecular Biology

    • Chromatin and Chromosomes

      • Understanding Chromatin

      • Understanding Karyotypes and Chromosomes

      • Understanding Structures and Proteins in DNA

    • DNA Replication and Repair

      • Understanding DNA Repair

      • Understanding DNA Replication

    • Genetic Regulation

      • Understanding Epigenetics

      • Understanding Oncogenes

    • Genetic Sequences, Transcription, and Translation

      • Understanding Genetic Patterns

      • Understanding Introns and Exons

      • Understanding mRNA and Protein Modifications

      • Understanding Operons and Promoters

      • Understanding Transcription

      • Understanding Transcription Factors

      • Understanding Translation

    • Inheritance

      • Understanding Modes of Inheritance

      • Understanding Pedigrees and Punnett Squares

      • Understanding Prokaryotic Inheritance

  • Lab Techniques

    • Chromatography

      • Understanding Column Chromatography

      • Understanding Thin Layer Chromatography

    • DNA Analysis

      • Understanding Cloning and PCR

      • Understanding DNA Sequencing

      • Understanding Restriction Endonucleases and RFLPs

    • Electrophoresis and Blots

      • Understanding Other Blots and Gels

      • Understanding PAGE and SDS-PAGE

      • Understanding Western Blots

    • Genetic Manipulation

      • Understanding Knockouts

      • Understanding Recombinant DNA

      • Understanding RNAi

    • Immunochemistry

      • Understanding Immunological Stains

    • Microscopy

      • Understanding Electron Microscopy

      • Understanding Light Microscopy

    • Other Lab Techniques

      • Understanding Identification Techniques

      • Understanding Other Techniques

      • Understanding Separation Techniques

  • Plant Biology

    • Plant Nutrition and Hydration

      • Understanding Plant Metabolism and Photosynthesis

      • Understanding Water Transport

    • Plant Reproduction

      • Understanding Plant Development

      • Understanding Plant Hormones

      • Understanding Plant Reproductive Structures

    • Plant Structures

      • Understanding Plant Macrostructures

      • Understanding Plant Microstructures