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1. Introduction to Biology(0)

Introduction to Biology
(0)

Characteristics of Life
(0)

Life's Organizational Hierarchy
(0)

Natural Selection and Evolution
(0)

Introduction to Taxonomy
(0)

Scientific Method
(0)

Experimental Design
(0)

2. Chemistry(0)

Atoms- Smallest Unit of Matter
(0)

Isotopes
(0)

Introduction to Chemical Bonding
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Covalent Bonds
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Noncovalent Bonds
(0)

Ionic Bonding
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Hydrogen Bonding
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3. Water(0)

Introduction to Water
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Properties of Water- Cohesion and Adhesion
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Properties of Water- Density
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Properties of Water- Thermal
(0)

Properties of Water- The Universal Solvent
(0)

Acids and Bases
(0)

pH Scale
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4. Biomolecules(0)

Carbon
(0)

Functional Groups
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Introduction to Biomolecules
(0)

Monomers & Polymers
(0)

Carbohydrates
(0)

Proteins
(0)

Nucleic Acids
(0)

Lipids
(0)

5. Cell Components(0)

Microscopes
(0)

Prokaryotic & Eukaryotic Cells
(0)

Introduction to Eukaryotic Organelles
(0)

Endomembrane System: Protein Secretion
(0)

Endomembrane System: Digestive Organelles
(0)

Mitochondria & Chloroplasts
(0)

Endosymbiotic Theory
(0)

Introduction to the Cytoskeleton
(0)

Cell Junctions
(0)

6. The Membrane(0)

Biological Membranes
(0)

Types of Membrane Proteins
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Concentration Gradients and Diffusion
(0)

Introduction to Membrane Transport
(0)

Passive vs. Active Transport
(0)

Osmosis
(0)

Simple and Facilitated Diffusion
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Active Transport
(0)

Endocytosis and Exocytosis
(0)

7. Energy and Metabolism(0)

Introduction to Energy
(0)

Laws of Thermodynamics
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Chemical Reactions
(0)

ATP
(0)

Enzymes
(0)

Enzyme Activation Energy
(0)

Enzyme Binding Factors
(0)

Enzyme Inhibition
(0)

Introduction to Metabolism
(0)

Negative & Positive Feedback
(0)

8. Respiration(0)

Redox Reactions
(0)

Introduction to Cellular Respiration
(0)

Types of Phosphorylation
(0)

Glycolysis
(0)

Pyruvate Oxidation
(0)

Krebs Cycle
(0)

Electron Transport Chain
(0)

Chemiosmosis
(0)

Review of Aerobic Cellular Respiration
(0)

Fermentation & Anaerobic Respiration
(0)

9. Photosynthesis(0)

Introduction to Photosynthesis
(0)

Leaf & Chloroplast Anatomy
(0)

Electromagnetic Spectrum
(0)

Pigments of Photosynthesis
(0)

Stages of Photosynthesis
(0)

Light Reactions of Photosynthesis
(0)

Calvin Cycle
(0)

Photorespiration
(0)

C3, C4 & CAM Plants
(0)

Review of Photosynthesis
(0)

10. Cell Signaling(0)

Introduction to Cell Signaling
(0)

Classes of Signaling Receptors
(0)

Types of Cell Signaling
(0)

Signal Amplification
(0)

11. Cell Division(0)

Introduction to Cell Division
(0)

Organization of DNA in the Cell
(0)

Introduction to the Cell Cycle
(0)

Interphase
(0)

Phases of Mitosis
(0)

Cytokinesis
(0)

Cell Cycle Regulation
(0)

Review of the Cell Cycle
(0)

Cancer
(0)

12. Meiosis(0)

Genes & Alleles
(0)

Homologous Chromosomes
(0)

Life Cycle of Sexual Reproducers
(0)

Introduction to Meiosis
(0)

Meiosis I
(0)

Meiosis II
(0)

Genetic Variation During Meiosis
(0)

Mitosis & Meiosis Review
(0)

13. Mendelian Genetics(0)

Introduction to Mendel's Experiments
(0)

Genotype vs. Phenotype
(0)

Punnett Squares
(0)

Mendel's Experiments
(0)

Mendel's Laws
(0)

Monohybrid Crosses
(0)

Test Crosses
(0)

Dihybrid Crosses
(0)

Punnett Square Probability
(0)

Incomplete Dominance vs. Codominance
(0)

Epistasis
(0)

Non-Mendelian Genetics
(0)

Pedigrees
(0)

Autosomal Inheritance
(0)

Sex-Linked Inheritance
(0)

X-Inactivation
(0)

14. DNA Synthesis(0)

The Griffith Experiment
(0)

The Hershey-Chase Experiment
(0)

Chargaff's Rules
(0)

Discovering the Structure of DNA
(0)

Meselson-Stahl Experiment
(0)

Introduction to DNA Replication
(0)

DNA Polymerases
(0)

Leading & Lagging DNA Strands
(0)

Steps of DNA Replication
(0)

DNA Repair
(0)

Telomeres
(0)

15. Gene Expression(0)

Central Dogma
(0)

Introduction to Transcription
(0)

Steps of Transcription
(0)

Eukaryotic RNA Processing and Splicing
(0)

Introduction to Types of RNA
(0)

Genetic Code
(0)

Introduction to Translation
(0)

Steps of Translation
(0)

Post-Translational Modification
(0)

Review of Transcription vs. Translation
(0)

Mutations
(0)

16. Regulation of Expression(0)

Introduction to Regulation of Gene Expression
(0)

Prokaryotic Gene Regulation via Operons
(0)

The Lac Operon
(0)

Glucose's Impact on Lac Operon
(0)

The Trp Operon
(0)

Review of the Lac Operon & Trp Operon
(0)

Introduction to Eukaryotic Gene Regulation
(0)

Eukaryotic Chromatin Modifications
(0)

Eukaryotic Transcriptional Control
(0)

Eukaryotic Post-Transcriptional Regulation
(0)

Eukaryotic Post-Translational Regulation
(0)

17. Viruses(0)

Viruses
(0)

18. Biotechnology(0)

Introduction to DNA-Based Technology
(0)

Introduction to DNA Cloning
(0)

Steps to DNA Cloning
(0)

Introduction to Polymerase Chain Reaction
(0)

The Steps of PCR
(0)

Gel Electrophoresis
(0)

Southern Blotting
(0)

DNA Fingerprinting
(0)

Introduction to DNA Sequencing
(0)

Dideoxy Sequencing
(0)

19. Genomics(0)

Genomes
(0)

20. Development(0)

Developmental Biology
(0)

Animal Development
(0)

Plant Development
(0)

21. Evolution(0)

Introduction to Evolution and Natural Selection
(0)

History of Evolutionary Thought
(0)

Natural Selection
(0)

Evidence of Natural Selection
(0)

Evidence of Evolution
(0)

Misconceptions About Evolution
(0)

22. Evolution of Populations(0)

Evolution of Populations
(0)

Genetic Variation
(0)

Genetics and Allele Frequencies
(0)

The Hardy-Weinberg Principle
(0)

Assumptions of the Hardy-Weinberg Principle
(0)

Non-Random Mating
(0)

Natural Selection
(0)

Genetic Drift
(0)

Gene Flow
(0)

Putting it All Together
(0)

23. Speciation(0)

Introduction to Speciation
(0)

The Biological Species Concept
(0)

Other Species Concepts
(0)

Allopatric and Sympatric Speciation
(0)

Hybrid Zones
(0)

Speciation Time Scales
(0)

24. History of Life on Earth(0)

Origin of Life
(0)

The Fossil Record
(0)

History of Life on Earth
(0)

Extinctions
(0)

Adaptive Radiation
(0)

Evolution of Complexity
(0)

25. Phylogeny(0)

Introduction to Phylogeny
(0)

Phylogeny
(0)

Building Phylogenetic Trees
(0)

Cladistics
(0)

Phylogenetics and Genome Evolution
(0)

26. Prokaryotes(0)

Introduction to Prokaryotes
(0)

Prokaryotic Cell Structure
(0)

Prokaryotic Motility
(0)

Prokaryotic Reproduction
(0)

Prokaryotic Metabolism
(0)

Prokaryotic Diversity
(0)

Prokaryotes in the Environment
(0)

27. Protists(0)

Introduction to Protists
(0)

Evolution of Protists
(0)

Protist Life Cycles
(0)

Eukaryotic Supergroups: Exploring Protist Diversity
(0)

28. Plants(0)

Land Plants
(0)

Nonvascular Plants
(0)

Seedless Vascular Plants
(0)

Seed Plants
(0)

29. Fungi(0)

Fungi
(0)

Fungi Reproduction
(0)

30. Overview of Animals(0)

Overview of Animals
(0)

31. Invertebrates(0)

Porifera and Cnideria
(0)

Lophotrochozoans
(0)

Ecdysozoans
(0)

Echinoderms
(0)

32. Vertebrates(0)

Chordates
(0)

Aminotes
(0)

Primates and Homonids
(0)

33. Plant Anatomy(0)

Roots and Shoots
(0)

Tissues
(0)

Growth
(0)

34. Vascular Plant Transport(0)

Water Potential
(0)

35. Soil(0)

Soil and Nutrients
(0)

Nitrogen Fixation
(0)

36. Plant Reproduction(0)

Flowers
(0)

Seeds
(0)

37. Plant Sensation and Response(0)

Phototropism
(0)

Tropisms and Hormones
(0)

Plant Defenses
(0)

38. Animal Form and Function(0)

Animal Tissues
(0)

Metabolism and Homeostasis
(0)

Thermoregulation
(0)

39. Digestive System(0)

Digestion
(0)

Blood Sugar Homeostasis
(0)

40. Circulatory System(0)

Circulatory and Respiratory Anatomy
(0)

Heart Physiology
(0)

Gas Exchange
(0)

41. Immune System(0)

Immune System
(0)

Innate Immunity
(0)

Adaptive Immunity
(0)

42. Osmoregulation and Excretion(0)

Osmoregulation and Excretion
(0)

43. Endocrine System(0)

Endocrine System
(0)

44. Animal Reproduction(0)

Animal Reproduction
(0)

45. Nervous System(0)

Neurons and Action Potentials
(0)

Central and Peripheral Nervous System
(0)

46. Sensory Systems(0)

Sensory System
(0)

47. Muscle Systems(0)

Musculoskeletal System
(0)

48. Ecology(0)

Introduction to Ecology
(0)

Biogeography
(0)

Earth's Climate Patterns
(0)

Introduction to Terrestrial Biomes
(0)

Terrestrial Biomes: Near Equator
(0)

Terrestrial Biomes: Temperate Regions
(0)

Terrestrial Biomes: Northern Regions
(0)

Introduction to Aquatic Biomes
(0)

Freshwater Aquatic Biomes
(0)

Marine Aquatic Biomes
(0)

49. Animal Behavior(0)

Animal Behavior
(0)

50. Population Ecology(0)

Introduction to Population Ecology
(0)

Population Sampling Methods
(0)

Life History
(0)

Population Demography
(0)

Factors Limiting Population Growth
(0)

Introduction to Population Growth Models
(0)

Linear Population Growth
(0)

Exponential Population Growth
(0)

Logistic Population Growth
(0)

r/K Selection
(0)

The Human Population
(0)

51. Community Ecology(0)

Introduction to Community Ecology
(0)

Introduction to Community Interactions
(0)

Community Interactions: Competition (-/-)
(0)

Community Interactions: Exploitation (+/-)
(0)

Community Interactions: Mutualism (+/+) & Commensalism (+/0)
(0)

Community Structure
(0)

Community Dynamics
(0)

Geographic Impact on Communities
(0)

52. Ecosystems(0)

Introduction to Ecosystems
(0)

Energy Flow Through Ecosystems
(0)

Making Sense of Ecosystem Production & Efficiency
(0)

Energy & Biomass Pyramids
(0)

Factors Impacting Primary Production
(0)

Biogeochemical Cycles
(0)

53. Conservation Biology(0)

Conservation Biology
(0)

13. Mendelian Genetics

Mendel's Experiments

13. Mendelian Genetics

Mendel's Experiments: Videos & Practice Problems

Video Lessons Practice Worksheet

Mendel's Experiments Practice Problems

20 problems

Problem 1Multiple Choice

A researcher sets three mating pairs and her observations are as follows.
Experiment 1: Male mouse having brown fur mated with a female mouse having brown fur. Observation: 10 pups had brown fur and 3 had white fur.
Experiment 2: Male mouse having white fur mated with a female mouse having white fur. Observation: All the 8 pups had white fur.
Experiment 3: Male mouse having brown fur mated with a female mouse having white fur. Observation: 5 pups had brown fur and 4 had white fur.
Determine which allele is dominant and which is recessive.

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Problem 2Multiple Choice

Gregor Mendel chose pea plants (Pisum sativum) for his experiments on inheritance due to which of the following reasons?

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Problem 3Multiple Choice

Which of the following traits was not studied by Mendel during his experiments on pea plants?

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Problem 4Multiple Choice

Which of the following correctly defines a true-breeding organism?

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Problem 5Multiple Choice

The initial set of parents that are crossed to produce offspring is called:

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Problem 6Multiple Choice

What is the primary difference between self-fertilization and cross-fertilization in Mendel's experiments?

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Problem 7Multiple Choice

Which of the following statements correctly defines a true-breeding plant?

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Problem 8Multiple Choice

In a Punnett square, what does each box represent when predicting the outcome of a monohybrid cross?

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Problem 9Multiple Choice

How did Mendel determine which traits were dominant in his pea plant experiments?

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Problem 10Multiple Choice

If a pea plant with yellow seeds (dominant) is crossed with a plant with green seeds (recessive), what is the expected phenotypic ratio of the F1 generation?

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Problem 11Multiple Choice

What does it mean for a plant to be heterozygous for a trait?

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Problem 12Multiple Choice

How does Mendel's naming system for generations assist in tracking inheritance patterns?

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Problem 13Multiple Choice

In a genetic cross, how does the F2 generation help confirm Mendel's principles of inheritance?

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Problem 14Multiple Choice

Why are Mendel's experiments considered foundational in the field of genetics?

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Problem 15Multiple Choice

Imagine a farmer crosses a true-breeding purple-flowered plant with a true-breeding white-flowered plant. Which of these best illustrates Mendel's principles?

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Problem 16Multiple Choice

How does self-fertilization help in distinguishing between homozygous and heterozygous traits in Mendel's experiments?

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Problem 17Multiple Choice

What would be the result of self-fertilizing a hybrid plant in terms of offspring traits?

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Problem 18Multiple Choice

In which situation would Mendel's use of Punnett squares not accurately predict the phenotypic ratios of offspring?

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