Thorough presentation of genetics in the 21st century. Includes foundational concepts, key scientific and historical themes (such as Watson and Crick, Mendelian genetics), ethical issues (such as cloning and genetic testing), and advances in the science (such as DNA fingerprinting and microarray analysis). A significant revision of the earlier 2003 edition, Genetics reworks one hundred core entries, such as Genetic Code, Meiosis, and RNA, to make them accessible for high-school reading levels. In addition, more advanced topics, such as Combinational Chemistry, High-Throughput Screening, and Transposable Genetic Elements, are revised and updated for further learning. Many new entries are included, such as Careers in Genetics and Biotechnology, CRISPR-Cas 9 Genome Editing (includes video), Genetically Modified Organisms (includes video), and HeLa Cells.