Amoeba Sisters
Multiple Alleles (ABO Blood Types) and Punnett Squares
Learn how to set up and solve a genetic problem involving multiple alleles using ABO blood types as an example!
SciShow
There Are More Than Two Human Sexes
In high school biology, we learn that humans are born with either XX or XY chromosomes, and that a person’s internal and external sex organs match those chromosomes. It turns out, however, that sex isn’t that straightforward.
Amoeba Sisters
Pedigrees
Explore autosomal recessive trait and X-linked recessive trait tracking in pedigrees with the Amoeba Sisters! Table of Contents: Intro 00:00 Introducing Symbols/Numbering in Pedigree 0:40 Meaning of Shading in Shapes 1:19 Introducing...
Bozeman Science
Chromosomal Inheritance
In this video Paul Andersen describes genetics at the chromosomal level. He begins with a simple monohybrid cross as viewed through Mendelian genetics and then shows how genes are distributed through meiosis to possible gametes. This is...
Curated Video
GCSE Biology - Why We Inherit Diseases From Our Family - Polydactyly & Cystic Fibrosis #75
In this video we take a look at the conditions polydactyly and cystic fibrosis, and use genetic diagrams to see how they can be inherited.
Professor Dave Explains
Macrophages: The Destroyers
Before we move on from the innate immune system, let's go through all the cell types one by one, so that we can better understand them. Let's start with macrophages, which are long-lived phagocytic cells. They play a pivotal role in...
Curated Video
Genotype, Phenotype and Punnett Squares Made EASY!
Ever wondered how traits are inherited? How can we predict the height of a pea plant or the color of a flower? Dive into the exciting world of genetics with me, Leslie Samuel, as we simplify complex concepts of genotype, phenotype, and...
Curated Video
Introduction to Punnett Squares and Genetic Inheritance Analysis
This is a tutorial video that explains what a Punnett square is and how it can be used to analyze and predict genetic inheritance. The video defines important terms such as genotype and phenotype and explains how alleles operate on a...
Catalyst University
Genetics | Law of Segregation & Punnet Squares
A brief discussion on Mendel's law of segregation followed by an in-depth Punnet square (monohybrid cross) example.
Professor Dave Explains
Beyond Mendelian Genetics Complex Patterns of Inheritance
We've already learned about Mendelian genetics, which taught us about dominant and recessive alleles and the laws that govern their inheritance. But things are not always so simple. There are situations that go beyond this basic...
TED-Ed
How Mendel's Pea Plants Helped Us Understand Genetics
A brief animation introduces heredity to your beginning biologists. They will meet Gregor Mendel's green and yellow peas, dominant and recessive traits, homozygous and heterozygous alleles, and Punnett squares. In this cartoon animation,...
Curated OER
Mendelian Genetics and Inheritance
Introduce your biologists to Gregor Mendel, the man responsible for Mendelian genetics. The resource explains the experiment that made him famous and sparked interest in genetics everywhere. Also take a closer look at Huntington's...
Curated OER
Hardy-Weinberg Principle
After learning to calculate probabilities for single examples of genetic crosses in a previous lecture, students are exposed to the concept that allele and genotype frequencies in a population remain in constant equilibrium. A reasonable...
Khan Academy
Introduction to Heredity
Young scientists generally love to learn how certain traits can be explained by a direct combination of alleles from their parents. Here, they can examine how a phenotype is often expressed when one allele is recessive and the other is...
Khan Academy
Punnett Square Fun, Biomolecules, MCAT
The topics in the previous video about dominant and recessive traits are continued here as Sal Khan explains incomplete dominance, the randomness of genotypes and phenotypes, and covers how to calculate probabilities using Punnett...
Amoeba Sisters
Alleles and Genes
How do organisms end up with such a wide variety of traits? It's in their genes! Kick off your inherited traits lesson using a brief video that covers alleles and genes. The narrator describes heterozygous and homozygous genotypes, how...
Amoeba Sisters
Pedigrees
Pupils puzzled by pedigree charts? Not anymore! Show them proper pedigree protocol using a short video from an excellent biology playlist. Content includes pedigree symbols and terminology, interpreting pedigrees of various lengths, and...
FuseSchool
Genetics and Cell Division Keyword Definitions
Scholars often find new vocabulary overwhelming—help break it down for them. A helpful video addresses the vocabulary associated with genetics and cell division. It offers the definition of each and a short explanation. Cartoon graphics...
FuseSchool
Codominance
Some alleles share codominance rather than dominant or recessive. The video explains how codominance is determined and what it looks like in animals. Part of the Fuse School Genetics series, it relates the topic to human blood types and...
Teacher's Pet
Population Genetics
Population genetics deals with genetic differences within and between populations. The video explains why this is the lowest level of evolution. Then it discusses mutations, environmental factors, genetic recombination, and random gamete...
Bozeman Science
Mendelian Genetics
Young scientists explore Gregor Mendel's work on pea plants, his laws of segregation and independent assortment. They work through genetic problems and then finish by looking at Huntington's disease and genetic testing.
Bozeman Science
Hardy-Weinberg Equation
Dark, curly, non-red, and thick hair are all dominant genes. The video begins by defining phenotype, genes, alleles, and genotype. Scholars learn how alleles determine genotype, which directs phenotype, using red hair as the example. The...