HS-LS1-4
Use a model to illustrate the role of cellular division (mitosis) and differentiation in producing and maintaining complex organisms.
- Genetics
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.
