SciShow
You Have Four Ages
A person's chronological age doesn't tell us much about the health of their body's various systems. That's why scientists are beginning to study biological ages, and it turns out there may be a lot of them.
SciShow
We're One Step Closer to Understanding Aging
Scientists have had a variety of hypotheses about how chemical stress can affect DNA to cause aging, but a new study has just shown the process in action. Hosted by: Hank Green
SciShow
Why We Age - And How We Can Stop It
Hank hates death, so he helps us understand the process of aging, informs us of how scientists are studying ways to prevent it and brings us the exciting news of current research in longevity... for mice.
SciShow
The Chromosomes Hiding in Specks of Lint
Tiny versions of chromosomes show up in things like birds, reptiles, and amphibians. These mysterious lint-like flecks may be the building blocks for our entire genomes.
SciShow
Here's What DNA Really Looks Like
There’s more to DNA than just the double helix we know and love: under some conditions this familiar molecule can take on unfamiliar forms, each of which can have a different impact on our health.
SciShow
What Happens If You Fuse All Your Chromosomes? | SciShow News
Two separate groups of biologists reported fusing entire sets of Saccharomyces cerevisiae chromosomes together, and surprisingly, the actual number of chromosomes might not be as important as we thought.
SciShow
Why We Age - And How We Can Stop It
Hank hates death, so he helps us understand the process of aging, informs us of how scientists are studying ways to prevent it and brings us the exciting news of current research in longevity... for mice.
SciShow
We're One Step Closer to Understanding Aging
Scientists have had a variety of hypotheses about how chemical stress can affect DNA to cause aging, but a new study has just shown the process in action.
Nature League
Why Isn't Life Immortal? - Lesson Plan
In this Nature League Lesson Plan, Brit explores the definitions and connections between metabolism and aging.
Nature League
Exploring Metabolism and Aging | Compilation
Brit looks back on our tenth month on Nature League, when we explored the theme of metabolism and aging. Get your Nature League pin here!
Catalyst University
Telomeres and Telomerase: Aging Theory and Nutritional Applications
Here we discuss shortening of telomeres, factors that affect this phenomenon, and the function of telomerase.
Professor Dave Explains
Chromosome Structure and Organization
We've all seen pictures of chromosomes, and we know that they contain DNA. But how do we get from the double helix of DNA to the X-looking shape of a chromosome? Is it just DNA, or are there other things in there? How much DNA is in each...
Getty Images
Telomerase enzyme.
Telomerase (blue) is an enzyme that adds telomeres, repeat units of six DNA bases, to the ends of chromosomes. It uses an RNA template (red backbone) to assemble repeated units of the DNA bases TTAGGG, where T is thymine (yellow), A is...