The Basics Nucleotides are the alphabet of DNA. There are only four "letters" in DNA : adenine (A), thymine (T), guanine (G)...

Long before they understood why the strategy worked, farmers knew how to crossbreed plants to obtain more desirable traits. Even today, a ...

4 4   Though science has still not replied to the eternal question of whether tomato is a fruit or a vegetable , it has stepped closer to ...

By: Jennifer Welsh, LiveScience Staff Writer Published: 05/30/2012 01:07 PM EDT on LiveScience For years scientists have slaved away, tryin...

The tomato has always been a complex fruit. Or is it a vegetable? Either way. Tomato, tomahto, right? The tomato, which is considered a frui...