Here's the one I'm using: http://www.rapid-french.com
It's a paid course, but they offer a free introductory course. It's a good (and free!) way to get started if you're just beginning. Then if you like it and are actually following it and being consistent, and if it's working for you, you...
hey phylotree,
not sure if you're still looking for help with this, but DNASubway (google it, can't post links...) has a great introductory level tool for constructing phylogenetic relationships and learning about phylogenetics in general, on a molecular (dna, protein) level. In particular...
Hi Ahmed,
You pretty much summed it up. Ancestral means the trait was inherited from the ancestor, so all branches which descend from the ancestor will have this trait (it will be 'shared' among them because they all got it from their common ancestor). Any unique traits they possesses must have...
There is a new, emerging field called dna barcoding. This allows us to catalogue all living species just as we do any merchandise in a store. Each living species (plants, animals, fungi, etc.) has a region of their genome which is unique, the 'dna barcode', and this field is rapidly growing with...
hi thorium1010,
there is a very simple way to distinguish micro evolution from macro evolution. Just think of this, if the evolution resulted in a new *species*, then this would be termed macroevolution (the debate to whether this really exists or not is a different subject).
If there is no...
I like physics because I look at all the problems as a challenge or a puzzle which needs to be solved using certain tools (laws, etc.).
My interest in physics was increased when I learned about biophysics which is a fascinating emerging field studying things like interaction of proteins on a...