Health & Medicine
Sickle-cell gene therapies offer hope — and challenges
Doctor Erica Esrick discusses existing treatments and an ongoing clinical trial for a gene therapy to treat sickle cell disease.
HS-LS1-4
Use a model to illustrate the role of cellular division (mitosis) and differentiation in producing and maintaining complex organisms.
More Stories in HS-LS1-4
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Health & MedicineExplainer: What are Antibodies?
Antibodies are one of the major players in the immune system’s attack against germs. Learn what they are, what they do and how they keep us healthy.
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LifeA new spin on lab-grown meat
A technique inspired by how cotton candy is spun could help produce lab-grown meat at a lower cost and on a bigger scale.
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GeneticsExplainer: 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.
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GeneticsExplainer: How CRISPR works
Scientists are using a tool called CRISPR to edit DNA in all types of cells.
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LifeHow to make a ‘three-parent’ baby
Scientists combined an egg, sperm and some donor DNA: The end result: what appears to be healthy babies.
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Science & SocietyExpert 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.
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Health & MedicineNew 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.
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GeneticsSilencing 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.
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LifeScientists Say: Parthenogenesis
When a baby frog develops from an egg that’s never been fertilized, we call that parthenogenesis.