Ch. 13 - Mendelian GeneticsWorksheetSee all chapters
All Chapters
Ch. 1 - Introduction to Biology
Ch. 2 - Chemistry
Ch. 3 - Water
Ch. 4 - Biomolecules
Ch. 5 - Cell Components
Ch. 6 - The Membrane
Ch. 7 - Energy and Metabolism
Ch. 8 - Respiration
Ch. 9 - Photosynthesis
Ch. 10 - Cell Signaling
Ch. 11 - Cell Division
Ch. 12 - Meiosis
Ch. 13 - Mendelian Genetics
Ch. 14 - DNA Synthesis
Ch. 15 - Gene Expression
Ch. 16 - Regulation of Expression
Ch. 17 - Viruses
Ch. 18 - Biotechnology
Ch. 19 - Genomics
Ch. 20 - Development
Ch. 21 - Evolution by Natural Selection
Ch. 22 - Evolution of Populations
Ch. 23 - Speciation
Ch. 24 - History of Life on Earth
Ch. 25 - Phylogeny
Ch. 26 - Prokaryotes
Ch. 28 - Protists
Ch. 29 - Plants
Ch. 30 - Fungi
Ch. 31 - Overview of Animals
Ch. 32 - Invertebrates
Ch. 33 - Vertebrates
Ch. 34 - Plant Anatomy
Ch. 35 - Vascular Plant Transport
Ch. 36 - Soil
Ch. 37 - Plant Reproduction
Ch. 38 - Plant Sensation and Response
Ch. 39 - Animal Form and Function
Ch. 40 - Digestive System
Ch. 41 - Circulatory System
Ch. 42 - Immune System
Ch. 43 - Osmoregulation and Excretion
Ch. 44 - Endocrine System
Ch. 45 - Animal Reproduction
Ch. 46 - Nervous System
Ch. 47 - Sensory Systems
Ch. 48 - Muscle Systems
Ch. 49 - Ecology
Ch. 50 - Animal Behavior
Ch. 51 - Population Ecology
Ch. 52 - Community Ecology
Ch. 53 - Ecosystems
Ch. 54 - Conservation Biology
Sections
Introduction to Mendel's Experiments
Genotype vs. Phenotype
Punnett Squares
Mendel's Experiments
Mendel's Laws
Monohybrid Crosses
Test Crosses
Dihybrid Crosses
Punnett Square Probability
Incomplete Dominance vs. Codominance
Epistasis
Non-Mendelian Genetics
Pedigrees
Autosomal Inheritance
Sex-Linked Inheritance
LearnAdditional Practice
Next SectionMendel's Experiments

Concept #1: Punnett Squares

Concept #2: How to Use Punnett Squares

Practice: Mendel found that green pea pod color (y) was recessive to yellow pea pod color (Y). For the cross Yy × yy, what percentage of offspring are expected to be yellow?

Practice: A female dog with black fur (Ff) mates with a male dog that also has black fur (Ff). Determine the possible genotypes and phenotypes of their puppies using a Punnett Square. Black fur (F) is dominant to grey fur (f).

a)  # of possible Genotypes:

FF: ________ 

Ff: ________ 

ff: _________

b)  % of possible Phenotypes: 

Black fur: __________

Grey fur: ___________

Previous SectionGenotype vs. Phenotype
Next SectionMendel's Experiments
Additional Problems
If you cross two pea plants, one with green peas and the other with yellow peas. All of the offspring have yellow peas. You conclude:  a. The yellow parent was homozygous for the recessive allele b. The yellow parent was homozygous for the dominant gene c. The yellow parent was homozygous for the dominant allele d. The yellow parent was homozygous for the recessive gene e. The yellow parent was heterozygous