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…
For thousands of years, farmers have improved their crops by crossbreeding plants that have good traits. They take pollen from one plant and add it to the flowers of another plant to produce a…
(Encyclopedia) antisense, DNA or RNA manipulated in a laboratory so that its components (nucleotides) form a complementary copy of normal, or “sense,” messenger RNA (mRNA; see nucleic acid).…
(Encyclopedia) Shimomura, Osamu, 1928–2018, Japanese organic chemist and marine biologist, Ph.D. Nagoya Univ., 1960. Shimomura was a researcher at Princeton (1960–82) and a professor (1982–2001)…
(Encyclopedia) muscular dystrophymuscular dystrophydĭsˈtrōfē [key], any of several inherited diseases characterized by progressive wasting of the skeletal muscles. There are five main forms of the…
Meiosis and Sexual ReproductionInheritanceIntroductionGenes at Work: Mendel's BreakthroughMeiosis and Sexual ReproductionGametogenesis in Plants and AnimalsRegulation of Gene Expression in…
IntroductionInheritanceIntroductionGenes at Work: Mendel's BreakthroughMeiosis and Sexual ReproductionGametogenesis in Plants and AnimalsRegulation of Gene Expression in Prokaryotes and…
(Encyclopedia) Arnold, Frances Hamilton, 1956–, American chemical engineer, b. Edgewood, Pa., Ph.D. Univ. of California, Berkeley, 1985. Arnold has been a professor at the California Institute of…
