by Olubusola Olukoyafigures by Corena Loeb Our ability to take in information from the world around us, make inferences, and execute appropriate reactions is generated by our brains. The brain, which weighs about 1.5 kilograms in the average adult, takes up 20% of our body’s energy expenditure to power a network of roughly 86 billion cells. Ongoing research in the field of neuroscience utilizes various … Continue reading What it Takes to Make a Brain: Cellular diversity in cortical development
by Alex Yenkinfigures by Allie Elchert Long before the completion of the Human Genome Project, scientists knew that many common diseases had a genetic component. However, there was debate about the architecture of these genetic effects: were there a few high-effect mutations or thousands of tiny effect mutations spread throughout the genome? Now, in the full swing of the genomics revolution, we can see that … Continue reading Mining DNA for Disease Prediction: The polygenic risk score
Zebrafish shed insight into how the brain responds to social isolation: their neuronal gene activity changes depending on how many others are around them. Continue reading The Effect of Social Isolation on the Zebrafish Brain
Don’t want to be bitten by mosquitoes? Well, new research has found a gene that can make females, the ones that bite, into males, the ones that don’t. Continue reading Want to control a pesky mosquito population? Convert all the females to males!
Researchers from John Hopkins University recently developed a newly improved gene editing tool that is extremely fast — it allows genes to be edited within just a few seconds! Continue reading New gene editing tool can edit genes within seconds
Researchers recently examined DNA sequences a snail living in deep ocean hydrothermal vents. They found similar DNA to other mollusks, but different DNA expression giving the snail its unique appearance. Continue reading Different Snail, Same Genes: What Gives the Scaly-foot Snail Its Scales?
by Sam Zimmerman figures by Hannah Zucker If we were all mice, Alzheimer’s disease, cancer, diabetes, and most inherited disorders would be a thing of the past. We could nibble on as much cheese as we wanted without fear of heart disease and run around our favorite wheel for hours on end without knee pain because all these ailments have been cured in mice. Unfortunately, … Continue reading Why Drugs Tested in Mice Fail in Human Clinical Trials
A new study takes a crack at trying to predict someone’s face using just their DNA. Continue reading A Rough Portrait of Your Face, Painted by your DNA
Let’s consider a paradox of probabilities. If all cells have the same risk of becoming cancerous, then the likelihood of developing cancer is proportional to the number of cells in an animal. This argument generally holds true for the incidence of cancer and body size for individuals within a given species. However, when comparing across different animal species, there is no constant proportionality between body … Continue reading Zombie genes help eradicate elephant cancer in early stages
A first link between chronic stress, genetics, and mental illness has recently observed in mice. Researchers have discovered that the genes of mice exposed to chronic stress change over time. Modifications were most associated with genes related to a variety of mental illnesses, such as depression, autism spectrum disorder, and schizophrenia.1-3 How exactly are genetics, stress, and mental illness related? DNA, serves as instructions for cells and is broken up into … Continue reading How stress can change your DNA