nucleus : Definition, Usages, News and More
- n a part of the cell containing DNA and RNA and responsible for growth and reproduction
- n the positively charged dense center of an atom
- n a small group of indispensable persons or things
- n (astronomy) the center of the head of a comet; consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tail
- n any histologically identifiable mass of neural cell bodies in the brain or spinal cord
- n the central structure of the lens that is surrounded by the cortex
- Having two protons and one electron in its nucleus, it is twice as heavy as the previously known hydrogen, whose nucleus has one proton.
- While most of a mammal's DNA resides in the nucleus, there's also some in the mitochondria.
- In nuclear transfer, stem cells are created by inserting the nucleus from a donor's cell, usually a skin cell, into an egg cell, whose DNA-containing nucleus has been removed.
News & Articles
- Jason Reid: Miami Heat’s Big Three come together as repeat NBA champions
COLUMN | When the Heat’s nucleus came together three years ago, some people howled. Who’s laughing now?
June 21, 2013 - Washington Post
- eQB NOW
As Director of Music Initiatives for CBS RADIO, Chad Fitzsimmons finds himself at the nucleus of his company's aggressive Amplify program as he immerses himself in the process of creating and executing unique branding and marketing opportunities for the music and artist communities. We discuss multiple issues with Chad in this week's Cover Story. In Programming To Win, Richard Harker looks at ...
June 21, 2013 - FMQB
- Cochlear Announces the Availability of the Nucleus® 6 Cochlear Implant System in Canada
Cochlear Announces the Availability of the Nucleus® 6 Cochlear Implant System in Canada
June 19, 2013 - CNW Group via Yahoo! Finance