Crash Course
Biotechnology: Crash Course History of Science
The history of discovering what DNA is, what it looks like, and how it works is... complicated. But, in this episode of History of Science, Hank Green does his best to lay out the basics so we can understand the beginnings of Biotechnology.
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...
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...
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...
Bozeman Science
Mitosis and Meiosis Simulation
Mr. Andersen uses chromosome beads to simulate both mitosis and meiosis. A brief discussion of gamete formation is also included.
Curated Video
Breakthrough in Reproduction: Female Mice Give Birth to Offspring Without Male Assistance
In a groundbreaking scientific achievement, researchers have successfully created a living mammal, named Kaguya, from two female mice without any male involvement. This remarkable feat challenges the long-standing belief that mammalian...
Curated Video
I WONDER - What Are Chromosomes?
This video is answering the question of what are chromosomes.
Curated Video
The Unusual Platypus: Discovering its Unique Sex Chromosomes
The platypus, a unique and fascinating creature, continues to surprise scientists with its extraordinary characteristics. Researchers at the Australian National University have discovered that the platypus possesses ten sex chromosomes,...
Curated Video
Cell nucleus: structure and function
The nucleus is one of the most important organelles found in eukaryotic cells. In this video, we will cover the definition, structure and functions of the cell nucleus.
Curated Video
Diploid
Diploid cells have two sets of chromosomes, one from the male parent and one from the female parent. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
Curated Video
Recessive allele
A recessive allele is the version of a gene that will only be expressed if two copies are present, one from each set of chromosomes. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Haploid
A cell that has half the number of chromosomes as normal body cells, containing a single set of unpaired chromosomes. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
Curated Video
Chromatin
The basic substance of chromosomes, in which DNA is wrapped around structural proteins called histones. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
Curated Video
Ovum
Or egg, is the unfertilised female reproductive cell. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...
Curated Video
Mutation
A change in a DNA sequence. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract concepts and key curriculum...
Curated Video
Factpack: DNA
How DNA dictates the genetic traits of humans and all organisms. Biology - Cells And DNA - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to grab attention at the start of a...
Curated Video
Chromosome
A threadlike strand of DNA and associated proteins in the nucleus of eukaryotic cells, and the functional units of inheritance. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Factpack: Fruit Flies
Discover how the humble fruit fly is helping scientists to fight Parkinson's disease and even cancer. Biology - Cells And DNA - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use...
Curated Video
The Genius Sperm Bank: Part 2
Meet the grown-up designer babies created by Robert Graham's Genius Sperm Bank in 1970s America. Were any geniuses? Biology - Cells And DNA - Learning Points. Germinal choice was introduced by millionaire Robert Graham. Children born of...
Curated Video
What is DNA?
How does our DNA make us unique, and how is this unique genetic information passed on when cells divide? Biology - Cells And DNA - Learning Points. Deoxyribonucleic Acid (DNA) molecules are found in chromosomes within all our cells. DNA...
Curated Video
Mitosis - Etapas de la Mitosis
En este video se explica la mitosis, el proceso de división celular que produce copias idénticas de células y es fundamental para el crecimiento, la reparación celular y la reproducción asexual. Las etapas clave de la mitosis son...
Wonderscape
Cell Division and Reproduction in Animals and Plants
Explore the processes of cell division and reproduction in animals and plants. Learn about mitosis, the process by which cells replicate and repair damaged tissue, and meiosis, the method of cell division involved in sexual reproduction....
Wonderscape
Chromosomes: The Carriers of Genetic Blueprints
Uncover the role of chromosomes in genetics, where these structures made of tightly coiled DNA house our genes. Learn how we inherit one set of 23 chromosomes from each parent, which explains why we might share traits with them. All...
Wonderscape
Decoding DNA: The Blueprint of Life
Dive into the fascinating structure of DNA, the molecule that forms the genetic blueprint for all living organisms. Understand how DNA's unique combinations determine traits and its ability to replicate ensures each cell in your body...