-
Contents
- Sweet Confusion: Does high fructose corn syrup deserve such a bad rap?
- Closed Thinking: Without scientific competition and open debate, much psychology research goes nowhere
- subscribe
- give a gift
- renew
- RSS Feeds
- email alerts
- Digital Edition
- Podcast
- Past issues
-
Contents
- A mind for math: A part of the brain associated with making memories may also predict success in learning math
- Teens take home science gold: A low-cost, self-driving vehicle; battery alternatives and analyses of galaxy clusters claim top prizes at a global high school science competition
- Flagging loose bolts: “Smart alert washer” automatically flags when a nut is coming loose, warning of potential danger
Scientists recently discovered that nocturnal mammals concentrate inactive DNA, called heterochromatin (blue and red), in one or two spots in the center of the nucleus in rod cells. In animals that are active during the day, rod cells have a DNA arrangement like that of other cells in the body, with active DNA (green) at the center of the nucleus.
Credit: Solovei, I. et al. Cell April 17, 2009
-
Eruption early in human prehistory may have been more whimper than bang
-
Greed may breed financial fitness, but evolution allows unselfishness to survive
-
Fine-tuning of technique used in other animals could enable personalized medicine
-
Simulation suggests long-term effect on sea level not as dire as some predictions
-
Coverage of the 2013 American Association for the Advancement of Science meeting
-
The Year in Science 2012
-
Three-part series on the scientific struggle to explain the conscious self
-
Tables of contents, columns and FAQs on SN Prime for iPad
Please alert Science News to any inappropriate posts by clicking the REPORT SPAM link within the post. Comments will be reviewed before posting.
You must register with Science News to add a comment. To log-in click here. To register as a new user, follow this link.