TED Talks
John Wilbanks: Let's pool our medical data
When you're getting medical treatment, or taking part in medical testing, privacy is important; strict laws limit what researchers can see and know about you. But what if your medical data could be used -- anonymously -- by anyone...
Amoeba Sisters
Alleles and Genes
Join the Amoeba Sisters as they discuss the terms "gene" and "allele" in context of a gene involved in PTC (phenylthiocarbamide) taste sensitivity. Note: as mentioned throughout video, the ability to taste PTC may be more complex than a...
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!
Amoeba Sisters
Monohybrids and the Punnett Square Guinea Pigs
Learn how to use a Punnett square to solve a Mendelian monohybrid cross with one of the Amoeba Sister's favorite classroom pets: hairless guinea pigs.
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...
Curated Video
Rh Incompatibility
The Rh factor is a protein found on red blood cells; individuals with it are Rh positive, while those without are Rh negative, and it is inherited genetically. Rh incompatibility occurs during pregnancy if an Rh-negative mother carries...
Curated Video
Blood Typing: ABO Blood Grouping & Codominance
Blood grouping is based on the presence of specific antigens—A, B, and H—on red blood cells, encoded by the ABO gene system. Individuals with blood type A have A antigens and anti-B antibodies, B has B antigens and anti-A antibodies, AB...
Curated Video
Blood Type Problems
What will be the blood type of the probable progenies of blood type AB and blood type O parents? Let's solve this problem in the scenarios below: What will be the phenotype from a father with heterozygous type A, and a mother with...
Curated Video
Two Point Mapping
To determine if two genes are linked, observe the variation in offspring numbers—if all genotypes occur equally, the genes are not linked. If offspring counts differ, the most frequent genotypes represent parental types, and the less...
Curated Video
GCSE Biology - Genetic Diagrams #73
To show how inheritance works we can use genetic diagrams and punnet squares. This video explores two examples to demonstrate everything you need know about them!
Curated Video
Punnett Squares
Dr. Forrester focuses on explaining Punnett squares, dominant and recessive genes, and simple traits.
Curated Video
Master Dihybrid Crosses: The Step-by-Step Guide to Punnett Squares & Genetic Ratios
In this detailed video, we'll walk you through dihybrid crosses, Punnett squares, and the often-discussed 9:3:3:1 ratio. Get ready to dive deep into the world of genetics! This step-by-step guide to dihybrid crosses using Punnett squares...
Curated Video
Punnett Square Example - Dihybrid Cross
A video explaining and illustrating how to determine the gametes from a two trait cross and how to find the genotype and phenotype ratio from a two trait cross.
Curated Video
Introduction to Genetic Diagrams for Single Gene Inheritance
This video provides an explanation of genetic diagrams and their use in studying single gene inheritance, also known as monohybrid inheritance. Using the example of superpowers inherited through a single gene, the video demonstrates how...
Catalyst University
Genetics | Dihybrid Cross (Example 2)
A second example of a dihybrid cross in which the paternal AaBb gamete is crossed with the maternal AaBb gamete (both parents are doubly heterozygotes for genes A & B)
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.
Visual Learning Systems
Fundamentals of Genetics: Hybrid Cross
In this program Mendel's work is explored in greater detail by using probability to make predictions of the inheritance of specific traits. The use of the Punnett Square is illustrated through easy-to-understand animations. Other...
FuseSchool
Codominance
In this video we are now going to look at codominance. You need to understand the difference between genotype and phenotype. The genotype is the set of genes. The phenotype are the physical characteristics that are coded for by the...
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...
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...
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
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...