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1. Introduction to Genetics(0)

History of Genetics
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Modern Genetics
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Fundamentals of Genetics
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2. Mendel's Laws of Inheritance(0)

Mendel's Experiments and Laws
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Inheritance in Diploids and Haploids
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Monohybrid Cross
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Dihybrid Cross
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Sex-Linked Genes
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Probability and Genetics
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Pedigrees
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3. Extensions to Mendelian Inheritance(0)

Understanding Independent Assortment
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Chi Square Analysis
(0)

Sex Chromosome
(0)

X-Inactivation
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Overview of interacting Genes
(0)

Pleiotropy
(0)

Epistasis and Complementation
(0)

Variations of Dominance
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Penetrance and Expressivity
(0)

Organelle DNA
(0)

Maternal Effect
(0)

4. Genetic Mapping and Linkage(0)

Mapping Overview
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Crossing Over and Recombinants
(0)

Mapping Genes
(0)

Trihybrid Cross
(0)

Multiple Cross Overs and Interference
(0)

Chi Square and Linkage
(0)

Mapping with Markers
(0)

Positional Cloning
(0)

5. Genetics of Bacteria and Viruses(0)

Working with Microorganisms
(0)

Bacterial Conjugation
(0)

Bacterial Transformation
(0)

Bacteriophage Genetics
(0)

Transduction
(0)

6. Chromosomal Variation(0)

Chromosomal Mutations: Aberrant Euploidy
(0)

Chromosomal Mutations: Aneuploidy
(0)

Chromosomal Rearrangements: Overview
(0)

Chromosomal Rearrangements: Deletions
(0)

Chromosomal Rearrangements: Duplications
(0)

Chromosomal Rearrangements: Inversions
(0)

Chromosomal Rearrangements: Translocations
(0)

7. DNA and Chromosome Structure(0)

DNA as the Genetic Material
(0)

DNA Structure
(0)

Alternative DNA Forms
(0)

RNA
(0)

Bacterial and Viral Chromosome Structure
(0)

Eukaryotic Chromosome Structure
(0)

8. DNA Replication(0)

Semiconservative Replication
(0)

Overview of DNA Replication
(0)

Telomeres and Telomerase
(0)

Recombination
(0)

9. Mitosis and Meiosis(0)

Mitosis
(0)

Meiosis
(0)

Development of Animal Gametes
(0)

Development of Plant Gametes
(0)

10. Transcription(0)

Overview of Transcription
(0)

Transcription in Prokaryotes
(0)

Transcription in Eukaryotes
(0)

RNA Modification and Processing
(0)

RNA Interference
(0)

11. Translation(0)

The Genetic Code
(0)

Transfer RNA
(0)

Ribosomal Structure
(0)

Translation
(0)

Proteins
(0)

12. Gene Regulation in Prokaryotes(0)

Lac Operon
(0)

Tryptophan Operon and Attenuation
(0)

Lambda Bacteriophage and Life Cycle Regulation
(0)

Arabinose Operon
(0)

Riboswitches
(0)

13. Gene Regulation in Eukaryotes(0)

Overview of Eukaryotic Gene Regulation
(0)

GAL Regulation
(0)

Epigenetics, Chromatin Modifications, and Regulation
(0)

Post Translational Modifications
(0)

14. Genetic Control of Development(0)

Studying the Genetics of Development
(0)

Developmental Patterning Genes
(0)

Early Developmental Steps
(0)

15. Genomes and Genomics(0)

Overview of Genomics
(0)

Sequencing the Genome
(0)

Genomic Variation
(0)

Bioinformatics
(0)

Comparative Genomics
(0)

Genomics and Human Medicine
(0)

Functional Genomics
(0)

Proteomics
(0)

16. Transposable Elements(0)

Discovery of Transposable Elements
(0)

Transposable Elements in Prokaryotes
(0)

Transposable Elements in Eukaryotes
(0)

Regulation of Transposable Elements
(0)

17. Mutation, Repair, and Recombination(0)

Types of Mutations
(0)

Spontaneous Mutations
(0)

Induced Mutations
(0)

DNA Repair
(0)

18. Molecular Genetic Tools(0)

Genetic Cloning
(0)

Methods for Analyzing DNA
(0)

19. Cancer Genetics(0)

Overview of Cancer
(0)

Cancer Mutations
(0)

20. Quantitative Genetics(0)

Mathematical Measurements
(0)

Traits and Variance
(0)

Analyzing Trait Variance
(0)

Heritability
(0)

QTL Mapping
(0)

21. Population Genetics(0)

Hardy Weinberg
(0)

Allelic Frequency Changes
(0)

22. Evolutionary Genetics(0)

Overview of Evolution
(0)

Speciation
(0)

Phylogenetic Trees
(0)

20. Quantitative Genetics

Heritability

20. Quantitative Genetics

Heritability: Videos & Practice Problems

Video Lessons Practice Worksheet

40 problems

Problem 31Multiple Choice

Which of these assertions regarding heritability is TRUE?

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Problem 32Multiple Choice

What is narrow-sense heritability (h²)?

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Problem 33Multiple Choice

What types of quantitative traits have the highest heritability values?

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Problem 34Multiple Choice

The percentage of a trait determined by genetics is referred to as:

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Problem 35Multiple Choice

What is true about heritability among the following statements?

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Problem 36Multiple Choice

The ____ twins are derived from a single zygote while the ____ twins came from two separate fertilization events.

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Problem 37Multiple Choice

In monozygotic twins, what could have contributed to their phenotypic variance?

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Problem 38Multiple Choice

What is the potential response to selection (R) for a trait if the variance due to genetics (V_G) is high relative to the variance due to the environment (V_E)?

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Problem 39Multiple Choice

A dairy farmer is selecting cows for breeding based on milk yield. The mean milk yield of the selected group is 35 liters per day, while the mean milk yield of the entire herd is 30 liters per day. What is the selection differential for milk yield in this herd, and what does it indicate about the potential for genetic gain?

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Problem 40Multiple Choice

What does a low value of narrow sense heritability (h²) suggest about the influence of genetics and the environment on a trait?

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