HS-LS1-4
Use a model to illustrate the role of cellular division (mitosis) and differentiation in producing and maintaining complex organisms.
- Genetics
Expert panel approves human gene editing
Scientists have recently been reporting big advances in the ability to tweak the genes of living organisms, including people. But some question the ethics of doing that. A panel of experts now says such research can go ahead — with one major exception.
- Health & Medicine
New treatments may rally ex-president’s fight against cancer
Former President Jimmy Carter has a potentially lethal type of skin cancer that has already spread to his liver and brain. Recent improvements in medicine may help him fight it.
- Chemistry
Silencing genes — to understand them
Hijacking a cell process called RNA interference can let scientists turn off a selected gene. Its silencing can point to what genes do when they’re on — and may lead to new treatments for disease.
- Life
Scientists Say: Parthenogenesis
When a baby frog develops from an egg that’s never been fertilized, we call that parthenogenesis.
- Agriculture
Explainer: What is a gene bank?
Most banks store money. But some very special ones store deposits that may prove even more valuable: tissues that could prevent the extinction of breeds and species.
- Genetics
Newfound DNA ‘enhancer’ behind many natural blonds
Some snippets of DNA other than genes play a role in giving some people of European a golden crown of hair.
- Life
Explainer: What is a stem cell?
Special cells have ability to turn into several different types
- Science & Society
Scientist profile: Leroy Hood
The inventor of the DNA sequencing technique, and Albert Lasker Awardee, embarks on the next big challenge.
- Genetics
Animal clones: Double trouble?
From agriculture to medicine to law, animal cloning to create genetic twins could change our lives.
