Amoeba Sisters
Mutations (Updated)
Join the Amoeba Sisters as they explain gene and chromosome mutations, and explore the significance of these changes. This updated video has improved audio and images! Codons and the amino acids they code for is represented by standard...
Bozeman Science
Mutations
Paul Andersen describes the major mutations found in the living world. He starts with an analogy comparing the information in DNA with the information in a recipe. Changes in the DNA can result in changes to the protein, like changes in...
Science ABC
What are Mutations and what are the different types of Mutations?
A mutation is a random change in the DNA. Mutations can be neutral, which means it does not cause a change in a trait of the organism, or it could cause a beneficial or a harmful mutation. There are a few different types of mutations -...
Curated Video
Chromosomal Disorders
It explains the cause and symptoms of some chromosomal disorders including Down's, Turner's and Klinefelter's syndromes.
SciShow
Is the Y Chromosome Disappearing?
Scientists know that the Y chromosome has been shrinking in size over millions of years, but recent studies suggest that it has more important genes, besides the ones that cause biological maleness. Hosted by: Michael Aranda
SciShow
How Neanderthals Ended Up With Human Chromosomes
This week we learned that the Neanderthal/Denisovan/Human family tree is pretty complicated, thanks to a close look into some Neanderthals' Y chromosomes.
SciShow
Is the Y Chromosome Disappearing?
Scientists know that the Y chromosome has been shrinking in size over millions of years, but recent studies suggest that it has more important genes, besides the ones that cause biological maleness.
Professor Dave Explains
Alteration of Chromosome Number and Structure
We've already learned about certain kinds of modification to the genome, namely in the way of mutations that can occur to specific base pairs, or frameshift mutations when base pairs are deleted or inserted. But there can also be...
Bozeman Science
Chromosomal Genetics
Paul Andersen explains aspects of genetics that were not covered by Gregor Mendel. He begins with the following topics; incomplete dominance, codominance, epistasis, multiple alleles, and multiple genes. He then explains how linked genes...
MinuteEarth
Why Bird Penises Are So Weird
Male birds have the largest genital diversity of any class of animals because their sex chromosomes make it easy to pass male-helping mutations down the line. ___________________________________________ To learn more, start your googling...
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.
MinuteEarth
The Actual Reason Men Die First
Because females often outlive males, behavior is often blamed - but there is a decent chance our sex chromosomes might be to blame instead.
Bozeman Science
LS3A Inheritance of Traits
In this video Paul Andersen explains the importance of DNA is organisms. DNA contains the blueprint for each organisms. The DNA codes for the mRNA which creates proteins. The DNA also is the unit of inheritance which is passed from...
Bozeman Science
Linked Genes
Paul Andersen explains how linked genes behave and how linked genes were discovered. He shows how linked genes would be reflected in a dihybrid cross using a fruit fly simulator. He uses chromosome-based punnett squares to explain why...
Curated Video
What Is Cystic Fibrosis
Cystic fibrosis is a genetic disease. It is caused by a defective gene on one of the chromosomes which has been inherited from the parents. The severity varies greatly from person to person, and largely depends on how much the lungs are...
Curated Video
Down's Syndrome
You might know, or have seen somebody with Down’s syndrome, but in this video, you are going to learn what it is and why it happens. Down’s syndrome is caused by a change in the DNA. You probably remember that any change in the structure...
Curated Video
What is Evolution: A REALLY SIMPLE and Brief Explanation
Evolution “is the net change in organisms or a population over the span of many generations.” This change in organisms or populations happens through DNA mutations and reconbination and is passed down to the next generation through...
Mazz Media
Genetic Diseases
In this live-action program viewers will learn that a monogenic disorder is a genetic disease caused by small-scale genetic differences that cause the malfunction of a single gene and that many diseases result from such genetic...
Curated Video
Mutations: great and small
Royal Society Francis Crick Lecture by Dr Matthew Hurles on 17 October 2013. One of the greatest surprises of human genetic research has been the degree to which healthy people vary in the number of genes in their genomes, as a result of...
Bozeman Science
LS3B - Variation of Traits
In this video Paul Andersen explains how variation is created in a population over time. Variation in offspring is caused by genetic recombination, mutations and environmental effects. Parental DNA is recombined using the process of...
CTE Skills
HST-AP - Mitosis/Cell Division
Mitosis is an asexual reproduction where a single cell divides into 2 identical cells (if mutation has not occurred) This video covers the process of cell division and all the key players including the nucleus, Chromatin, Chromosomes,...
Professor Dave Explains
Charles Darwin's Idea: Descent With Modification
Now that we've learned about molecules and cells and the simplest forms of life, we are ready to understand how all of life on earth evolved from a single common ancestor. Given our newfound knowledge about the chromosomal theory of...
Curated Video
There’s Something Weird About Neandertal DNA And It Might Be Our Fault
Maybe it’s a little self-centered that we can be pretty focused on the DNA that we got from Neanderthals – but we shouldn’t forget that gene flow goes both ways.