HS-LS1-1
Construct an explanation based on evidence for how the structure of DNA determines the structure of proteins which carry out the essential functions of life through systems of specialized cells.
- Animals
Hunting hidden salamanders with eDNA
The Japanese clouded salamander is an elusive beast. To find a new population, three teens turned to high-tech methods.
- Genetics
Your DNA is an open book — but can’t yet be fully read
There are many companies that offer to read your DNA. But be prepared: They cannot yet fulfill all those promises you read in their ads.
- Animals
Orca snot leads to a whale of a science-fair project
DNA found in the mucus of orcas suggests that even though the traits of family pods may differ, these marine mammals all appear to belong to a single species.
- Health & Medicine
Inked mice hint at how tattoos live on
Tattooed mice challenge our current understanding of how tattoos stay in humans.
- Animals
Cool Jobs: Diving for new medicines
Scientists mix research with underwater adventure as they search the oceans for new chemicals to treat infections, cancer and more.
- Animals
Explainer: DNA hunters
Snippets of DNA can be left behind by a passing organism. Some researchers now act as wildlife detectives to identify the sources of such cast-off DNA.
- Genetics
Explainer: Why scientists sometimes ‘knock out’ genes
How do we learn what a particular molecule does in the body? To find out, scientists often 'knock out' the gene that makes it. Here’s how.
- Health & Medicine
Explainer: What is a hormone?
Various tissues secrete special chemicals, known as hormones. They travel, usually in blood, to a particular distant site where they tell certain cells it’s time to go to work.
- Genetics
Explainer: How CRISPR works
Scientists are using a tool called CRISPR to edit DNA in all types of cells.
- Genetics
Scientists Say: Chromosome
This threadlike structure is made of DNA wrapped around protein. It allows the 3 billion base pairs in human DNA to stay neatly packaged in a cell.
- Genetics
How to view tiny parts of DNA? Make them ‘blink’
A new technique can image nanoscale structures in cells without hurting them. No dyes needed. All you have to do is stimulate them with the right color of light.
- Genetics
Scientists find genes that make some kids’ hair uncombable
Scientists have pinpointed three genes that cause ‘uncombable hair syndrome’ in some kids.
