(Encyclopedia) mutation, in biology, a sudden, random change in a gene, or unit of hereditary material, that can alter an inheritable characteristic. Most mutations are not beneficial, since any…
WHERE DO SEX CELLS FORM? HOW DOES AN EMBRYO FORM? WHERE DOES THE EMBRYO DEVELOP? HEREDITYFIND OUT MORENew life is created by reproduction. The mother and father produce sex cells, which join to…
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z More Biographies Don't see the biography you're looking for? Search 30,000+ biographies Biographies…
(Encyclopedia) Evans, Sir Martin John, British geneticist, Ph.D., University College London, 1969. After serving on the faculty at University College London (1966–78) and Cambridge (1978–99), he…
(Encyclopedia) Morgan, Thomas Hunt, 1866–1945, American zoologist, b. Lexington, Ky., Ph.D. Johns Hopkins, 1890. He was professor of experimental zoology at Columbia (1904–28) and from 1928 was…
(Encyclopedia) Smithies, Oliver, 1925–2017, American geneticist, b. Halifax, England, Ph.D., Oxford, 1951. Smithies was on the faculty at the Univ. of Toronto (1953–60) and Univ. of Wisconsin–Madison…
MicroevolutionMicroevolution and MacroevolutionIntroductionMicroevolutionSpeciationMacroevolution Microevolution is the change in the genome, or gene pool, for a given species in a relatively short…
WHAT IS GENETIC VARIATION? HOW CAN WE MANIPULATE GENES? GM FOODCLONESSTEM CELLSFIND OUT MOREGenetic engineering is the manipulation of genes of living things. Scientists can now insert genes from…
(Encyclopedia) Watt, James, 1736–1819, Scottish inventor. While working at the Univ. of Glasgow as an instrument maker, Watt was asked to repair a model of Thomas Newcomen's steam engine. He devised…
