Any organism is a by-product of both its genetic makeup and the environment. To understand this in detail, we must first appreciate some basic genetic vocabulary and concepts. Here, we provide ...

In which I try to cram several chapters worth of information into 500 words or so. Genetics research is interesting stuff, and news stories about exciting new findings seem to crop up almost daily.

When you see a dominant trait, the underlying genetic make-up can still be ambiguous. See how researchers use test crosses to find out the genotype behind the phenotype. The test cross is another ...