By Lisa Yount
A beneficial quantity within the striking Scientists sequence, A to Z of Biologists makes use of the machine of biography to be able to placed a human face on technology - a mode that provides immediacy to the prose for the excessive schooler who may have an curiosity in pursuing a profession in biology. This complete survey positive factors greater than a hundred and eighty entries and 50 black-and-white images. each one profile specializes in a specific biologist's learn and contributions to the sector and his or her impression on scientists whose paintings undefined. Their lives and personalities are mentioned in addition via incidents, quotations, and images. Culturally inclusive and spanning the complete variety of biologists from precedent days to the current day, the entries on girls and minority biologists specifically articulate many of the stumbling blocks that those biologists overcame within the strategy of achieving their objectives. This quantity is a perfect source for college kids and basic readers drawn to the background of biology or the non-public lives of important biologists.
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Additional resources for A to Z of Biologists (Notable Scientists)
Some of the millions of middleaged and elderly people who suffer from this condition cannot even climb a flight of stairs. Fatty deposits block or narrow the arteries that carry blood to the hearts of people with angina, limiting blood flow. Their hearts are thus starved for oxygen, which is carried in the blood. At the time Black started his research, the chief treatment for angina was a drug called nitroglycerin, which makes arteries expand and therefore allows more blood to flow through them.
Further Reading Bardell, David. ” Science Teacher, December 1997. Iterson, Gerrit van, et al. Martinus Willem Beijerinck: His Life and His Work. The Hague, Netherlands: Martinus Nijhoff, 1940. Johnson, James. ” The Plant Health Instructor, January 29, 2001. American Phytopathological Society. Available online. html. Accessed 2003. ” In 1972, he became the first person to combine pieces of DNA, the chemical Berg, Paul that carries genetic information, from two different kinds of living things. For this and other work in what came to be known as recombinant DNA technology or genetic engineering, he was awarded a share of the Nobel Prize in chemistry in 1980.
Sometimes, however, they are damaged in a way that activates them at the wrong time or leaves them “turned on” constantly, causing uncontrolled reproduction and cancer. Researchers also discovered a second group of genes, called tumor suppressor genes, that normally control and limit cell reproduction. Cancer can result when these genes are inactivated or destroyed. Bishop continues to try to learn what oncogenes and tumor suppressor genes do and how 28 Black, James Whyte they do it in both normal and cancerous cells.