For years doctors have urged people to watch what they eat. A big part of this has involved maintaining low levels of cholesterol, a complex lipid that is essential for animal cell membranes. Cholesterol is naturally synthesized in the liver,…
Category: Intermediate
School’s out for summer… or is it?
The 2013-14 school year is wrapping up, and we’re sure that you (and your students) are anxiously counting down the minutes. However, whereas your students will get to leave all thoughts of class behind for the summer, we know you’ll…
The Genesis of New Genes – Part 2
If you have not already, please read part 1 of our series on genetic variation. Last time I discussed how genes can be created de novo through mutations in non-coding regions of the genome. De novo genes have been shown to represent a…
The Genesis of New Genes
The advent of whole-genome sequencing has produced a number of startling discoveries related to the human genome. For starters, we are hardly as complex as we would like to think; Homo sapiens lags behind many organisms in both the size…