SciShow
Colorado's Bright Yellow River, and Why Fruit Flies Mate
This week on SciShow News, toxic waste from an abandoned mine turned a river yellow, and new research shows that threatened fruit flies may have more diverse offspring.
SciShow
Are Blue Eyes Endangered?
SciShow explains the genetics -- and physics -- behind why blue eyes are blue, and what the future may be for the trait. Spoiler alert: Blue eyes aren’t really blue! SciShow explains!
SciShow
Colorado's Bright Yellow River, and Why Fruit Flies Mate
This week on SciShow News, toxic waste from an abandoned mine turned a river yellow, and new research shows that threatened fruit flies may have more diverse offspring.
SciShow
4 Ways Humans Are Still Evolving
When we think about evolution, we typically think about big changes that happened long ago, but we humans are still evolving!
Amoeba Sisters
Hardy-Weinberg Equilibrium
Explore the Hardy-Weinberg Equilibrium equations with The Amoeba Sisters! Learn why this equation can be useful, its five assumptions, and how to calculate genotype and allele frequencies with p and q values! This video does assume the...
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
Incomplete Dominance, Codominance, Polygenic Traits, and Epistasis!
Discover more types of non-Mendelian inheritance such as incomplete dominance and codominance with the Amoeba Sisters!
Amoeba Sisters
Mega Genetics Review
Ready to review how to do different types of Mendelian and Non-Mendelian Punnett square problems with The Amoeba Sisters? This video reviews one-trait / monohybrid crosses, two-trait / dihybrid crosses, incomplete dominance, codominance,...
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
Dihybrid and Two-Trait Crosses
This video will show how to set up and solve everyone's favorite 16 square Punnett square.
Amoeba Sisters
Punnett Squares and Sex-Linked Traits
Explore inheritance when carried on the X chromosome with the Amoeba Sisters! This video focuses on how to do general Punnett square problems that involve traits on the sex chromosomes (X and Y chromosomes). We do want to point out...
Bozeman Science
Microevolution
Paul Andersen defines microevolution as any change in the frequency of the allele pool. He then explains the five mechanisms of evolution; small sample size, non-random mating, mutations, gene flow and natural selection.
SciShow
Condor Females Don’t Need a Male to Hatch Chicks
For the first time, researchers have observed two cases of asexual reproduction in condors. And it also turns out that whales are much hungrier than we thought.
Crash Course
Population Genetics: When Darwin Met Mendel - Crash Course Biology
Hank talks about population genetics, which helps to explain the evolution of populations over time by combing the principles of Mendel and Darwin, and by means of the Hardy-Weinberg equation.
Bozeman Science
Hardy-Weinberg Punnett Square
In this video Paul Andersen explains how you can combine the power of a Punnett square for an entire gene pool. Hardy-Weinberg equilibrium will remains constant under several constrains and the probability square makes the information...
Bozeman Science
Hardy-Weinberg Equation
In this video Paul Andersen explains the elements in the Hardy-Weinberg equation; including the allele frequency and phenotype frequency. He begins with a brief explanation of phenotypes and genotypes. A sample problem is worked out and...
TED-Ed
TED-Ed: How Mendel's pea plants helped us understand genetics - Hortensia Jimenez Diaz
Each father and mother pass down traits to their children, who inherit combinations of their dominant or recessive alleles. But how do we know so much about genetics today? Hortensia Jimenez Diaz explains how studying pea plants revealed...
SciShow
Gregor Mendel: Great Minds
Hank brings us the story of Gregor Mendel, the Austrian monk who, with the help of a garden full of pea plants, discovered the fundamental properties of inheritance and paved the way for modern genetics. He also gives us the dirt on a...
Bozeman Science
Genetic Recombination and Gene Mapping
In this video Paul Andersen explains how the frequency of recombination between linked genes can be used to determine the relative location of genes on a chromosome. Thomas Hunt Morgan and Alfred Strutevant used the fruit fly to develop...
Amoeba Sisters
Genetic Drift
Discover what happens when random events meet allele frequencies: genetic drift! This Amoeba Sisters video also discusses the bottleneck and founder effect as well as contrasts genetic drift with natural selection. Table of Contents:...
SciShow
Having Six Fingers Is a Dominant Trait
Genetics are extremely complicated—so complicated that having an extra finger or toe, for example, is exceedingly rare despite it being caused by a dominant gene.
Crash Course
Reproductive System, part 1 - Female Reproductive System: Crash Course A&P
Human reproduction is complicated an important, and it's going to take a four part series for us to cover it. Today, we're kicking that off with the female reproductive system, starting with how sex hormones affect oogenesis and...
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...
Crash Course
Heredity: Crash Course Biology
Hank and his brother John discuss heredity via the gross example of relative ear wax moistness.