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Part 4. Monogenic (qualitative) inheritance

This is the fourth part of a 5-part course Genetics for Breeders and Vets.

In the previous part of the course, we learned that a monogenic trait is typically caused by a mutation that causes a change in the function of a protein and thus affects the individual’s appearance. In this part, we will go through specific monogenic modes of inheritance and the associated pedigree charts.

We will go through :

  • Predicting offspring traits (Punnett’s square)
  • Inferring parental genotypes from offspring
  • How alleles affect each other’s expression – dominance, incomplete dominance, over-dominance, codominance, epistasis
  • Determining the mode of inheritance of a trait using a pedigree chart
  • What are the safe combinations if the disease is inherited in an autosomal recessive manner? Or when the mutation is on the X chromosome?
  • What is the probability of the disease being passed on to the offspring?
  • Why does a genetically affected individual not always become ill?

Content of the course

Monogenic (qualitative) inheritance course consists of lessons, quizzes and a glossary. Each lesson has also a comment section where you can ask questions about the lesson topics and discuss with other students.

Your instructor Katariina Mäki, PhD (Animal Breeding), will be present during the course. She will help you if you have any problems and will also answer questions on the course platform.

14 lessons

Each lesson contains a lecture video and the same content in text form.

All the points made in the lecture videos can be found in the text of each lesson. So you don’t have to search for a particular point in the video if you want to go back and check something.

Learning quizzes

Short learning quizzes after lessons.


The breeding and genetics terms taught in the course are collected in a glossary, where you can always check what a term means.

Possibility to ask questions

A question and comment section after each lesson – you can ask all those questions that have been bothering you for years. Remember, there are no stupid questions!

Course certificate

You can save and share the certificate on social media or print it out.

Frequently Asked Questions

How long does this course take?

This course lasts about two weeks, depending on how many lessons you want to complete per day.

You can study at your own pace.

When does this course start?

There is no fixed start date for the course. You can start the course as soon as you purchase it.

Are there any prerequisites for this course?

You should be familiar with the material covered in the previous parts of the course so that you can absorb the material covered in this part.

What tools do I need to participate?

You will need an internet connection and a computer or smart device.

How long will I have access to the course material?

The course content will be available to you permanently.

What if I am not satisfied with this course?

If you are not satisfied with the course, let us know within 14 days of purchase and we will refund your money.

Please note! When you purchase this course, you will still be on this same page. To start the course, open the first lesson ‘Welcome to the course’ by clicking ‘View Lesson’. If you are on a computer, you will find the Lesson menu on the right hand side of the page. If you are on a smartphone, the menu will appear at the bottom of the page.