blood

by Sophia Renauldfigures by Salvador Balkus Our understanding of the genetic material, or DNA, that makes up organisms has exploded over the last several decades. We have discovered that DNA is made up of multiple genes, and that different genes have…

by Tian Lu James Edward Bowman was born in Washington, D.C. on February 5, 1923. He grew up in a segregated environment which he described saying “there was complete segregation. … One could only go to theaters, movies, restaurants in the black…

by Tess Whitwam figures by Daniel Utter Imagine for a moment that you’re at a concert, standing close to a large loudspeaker—you can feel the vibrations from the loud music coursing through your body. Then, your friend behind you taps your shoulder, so…

You may think of honey bees as yellow and black-striped harbingers of spring, destined to flit between flowers and produce sweet honey. Their impact is far greater than the honey they produce, however; honey bees directly or indirectly produce one out of…

Imagine you are rushed to the hospital after an injury and need an emergency blood transfusion. If there is no time to test your own blood type, the hospital may give you type O blood. This is because type O is a “universal type.” Blood types…

Carrying diseases such as malaria, West Nile virus and yellow fever, a few species of mosquitoes are responsible for more than one million deaths each year. Certain species of mosquitoes actually prefer feeding on humans, and even show preferences…

by Christopher Gerry figures by Abagail Burrus A few weeks ago, a nurse took six gallons of blood out of my left arm; my body only holds about a gallon and a half of blood, so I wouldn’t be here if she had decided to keep it. The blood that was…

What is the difference between a normal cell and a cancer cell? The answer lies in their DNA. Cancer results from the accumulation of genetic mutations, which trigger uncontrolled cell growth. Cancer’s mutated DNA can reveal its presence early on in…

The intricate network of blood microcirculation in the human body is a closed and complex one. The hierarchy of blood flow in the human body takes blood from the heart to deep organs systems, through arteries that branch out into smaller arterioles and…

A team at UC Berkeley investigated the effects of transfusing blood from young mice into old mice and vice versa. They found that young blood only slightly improves some functions (e.g. brain cell development) in old mice, but old blood significantly…