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.
Curated Video
Understanding Variation: Genetic and Environmental Factors
The video is a lecture presentation on variation, specifically discussing the causes and types of variation within populations. They delve into the concept of acquired characteristics and how they do not affect offspring, as well as the...
Curated Video
Understanding Variation and Evolution: Factors and Processes Explained
This video discusses the concept of variation in a population and the factors that cause it, including genetic inheritance, mutations, and environmental factors. The video then goes on to explain the theory of evolution and how natural...
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...
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...
Professor Dave Explains
Mendelian Genetics and Punnett Squares
For all of human history, we've been aware of heredity. Children look like their parents. But why? When Gregor Mendel pioneered the field of genetics, he began to try to answer that question, and now that we know about chromosomes, all...
FuseSchool
BIOLOGY - Genetics - Common Terms Used in Genetics
Learn exactly what these different terms mean, that you will come across in genetics and cell division: Gamete, Chromosome, Gene, Allele, Dominant, Recessive, Homozygous, Heterozygous, Genotype, Phenotype, Haploid & Diploid
FuseSchool
Mutations
So, what causes mutations? Well, this is where science fiction meets science fact, sort of. In the backstory of many superheroes there will be a meeting with a radioactive substance - be it cosmic rays or radioactive waste. In real life,...
Visual Learning Systems
Fundamentals of Genetics: Genotype and Phenotype
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...
Getty Images
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Getty Images
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Getty Images
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Getty Images
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Getty Images
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Burchell's Zebra (Equus quagga burchellii) with unusual all-black body colouration, Etosha National Park, Namibia
Getty Images
Burchell's Zebra (Equus quagga burchellii), Etosha National Park, Namibia
Burchell's Zebra (Equus quagga burchellii), Etosha National Park, Namibia
PBS
Pbs Learning Media: Teaching Evolution Case Studies: Bonnie Chen
Bonnie Chen builds on students' prior knowledge of mutations to lead her class through a simulation of wading birds feeding. [14:02]
CK-12 Foundation
Ck 12: Punnett Squares: Punnett Square Fun
[Free Registration/Login may be required to access all resource tools.] In this Kahn Academy video, learn about Punnettt squares, with specific information on dihybrid crosses, independent assortment, incomplete dominance, codominance,...
Khan Academy
Khan Academy: Allele Frequency
Learn about allele frequencies in populations and how they differ from genotype frequencies. [7:27]
Khan Academy
Khan Academy: Biology: Variation in a Species
An explanation of genetic variations within a species. [19:51]
Khan Academy
Khan Academy: Biology: Introduction to Heredity
An introduction to heredity. Understand important terms in genetics like dominant and recessive traits, and heterozygous and homozygous genotypes. [17:27]
Sophia Learning
Sophia: Predicting the Inheritance of Traits With Genes
This lesson will discuss how scientists use dominant and recessive genes to predict inherited traits of offspring.