SciShow
Why We Age - And How We Can Stop It
As we get older, we age, our bodies and minds deteriorate, but this isn't true of all species. The video begins with why we age and what biological processes cause aging. Then it covers research on worms, mice, and other animals that...
SciShow
Great Minds: Elizabeth Blackburn
Why do some people look young at age 60 while others look old at age 30? Elizabeth Blackburn discovered it is all related to telomeres and telomerase. Her discoveries have not only led to a better understanding of aging, but also to a...
Bozeman Science
What are Chromosomes?
An informative video begins by showing scholars how chromosomes are like encyclopedias. The instructor then explains and differentiates genome, chromosome, sister chromatids, nucleosomes, DNA, genes, and base pairs.
Bozeman Science
X Inactivation
Ever wonder why most calico cats are female? An engaging video explores the inactivation of one of the x-chromosomes in female cats, allowing for calico coloration.
Bozeman Science
Linked Genes
Scholars analyze Morgan's fruit fly lab to learn how genes are linked. The instructor shows that the data from a dihybrid cross was not what Morgan expected, and when re-crossed numerous times, the data did not change. Viewers see gene...
Bozeman Science
Chromosomal Inheritance
Scholars see, through a monohybrid cross, how alleles are distributed during meiosis. The video instructor then explores Thomas Hunt Morgan's research on fruit flies, determining that genes are located on chromosomes and showing that...
Bozeman Science
Mitosis
Although we cannot clone ourselves yet, our bodies make copies of our cells every day. The video begins by defining diploid and haploid. Learners see the cell cycle and begin to understand what happens in interphase before mitosis...
Amoeba Sisters
Mutations: The Potential Power of a Small Change
Are the only mutants you know Ninja Turtles or X-Men? The video explains both gene mutation and chromosome mutation. It includes the subtypes of mutations for each major type, the times when mutations are more likely to happen, and...
Amoeba Sisters
Punnett Squares and Sex-Linked Traits
Until the 1960s, the life expectancy of a hemophiliac was only 11 years. An informative video explains how to solve a Punnett square when there is a sex-linked trait — in this case hemophilia. It includes a discussion of the xy...
Amoeba Sisters
Chromosome Numbers During Division: Demystified!
Your DNA is restless; have you taken your chromosome walking today? A video helps clarify how to count chromosomes during each stage of division for both mitosis and meiosis. It includes a comparison of division and reductive...
Amoeba Sisters
Mitosis: The Amazing Cell Process that Uses Division to Multiply!
What did one cell say to his sister when she stepped on his toe? Mitosis! The video details the process of using division to multiply that is better known as mitosis. It includes the four steps of mitosis: prophase, metaphase, anaphase,...
TED-Ed
Where Do Genes Come From?
No, you didn't get your genes from the local clothing store. Learn where they really come from by watching this video as it explores how the genes found in all plants and animals today have arisen over...
Curated OER
Mitosis
Watch as an animated cell goes through the process of mitosis as DNA coils and bunches into chromosomes. Once the nuclear membranes dissolve, spindles pull chromatids to opposite sides and stretch the cell. The video ends as mitosis...
PBS
DNA 101: Life's Instruction Manual | UNC-TV Science
Unravel the DNA molecule in just over a minute! Future geneticists listen and watch a video exploring DNA's structure, function, and the interaction of the genes and proteins that decode and interpret the complex molecule. Scholars...
Curated OER
Mitosis in Real Time
Watch as cells split beneath a microscope. This nineteen-second clip does not have narration or music, but it gives a fascinating look at mitosis. Use this in a high school biology class to demonstrate what mitosis really looks like.
Curated OER
The Female Reproductive System
A slide presentation is shown while the structures and functions of female reproduction are covered with narration. Estrogen is treated with some detail as well. Learners can easily take notes following the outline on the screen. This...
Curated OER
The Male Reproductive System
Show your beginning biologists and anatomists this clip to cover the male reproductive system. This presentation is narrated, dealing with the male structures and functions of the reproductive system. Testosterone is covered in detail...
Curated OER
Mitosis Demonstration
Models of chromosomes are moved around on a table as a teacher describes mitosis in its separate phases. If you need a demonstration for your biology class, you can use this video.
Khan Academy
Khan Academy: Macromolecules: Nucleic Acids: Dna
A video discussing the molecular structure of DNA. Understand that DNA is made up of a phosphate, deoxyribose sugar, and one of the four nitrogen base. Video also explains how the nitrogen bases pair up to form the double helix...
Khan Academy
Khan Academy: Cell Division: The Cell Cycle and Mitosis: Interphase
Learn about what happens to the cell during interphase in this video. Video will review how the cell prepares for cell division including chromosome changes, centromeres, and many more. [8:27]
Khan Academy
Khan Academy: Chromosomes, Chromatids and Chromatin
Video tutorial provides an overview of DNA transcription, translation, and replication during mitosis and meiosis while also teaching about chromosomes, chromatids, and chromatin. [18:23]
Khan Academy
Khan Academy: Chromosomal Crossover in Meiosis I
This video lesson explores how homologous chromosomes exchange fragments in prophase I. [12:15]
Khan Academy
Khan Academy: Biology: Chromosomes, Chromatids and Chromatin
An explanation of how DNA produces proteins and makes copies of itself. [18:23]
Howard Hughes Medical Institute
Hhmi: Biointeractive: Dna: Human Chromosomes
Human chromosomes explained in this brief description of human cell biology. [0:47]