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The terms 'recombinant DNA technology', 'DNA cloning', 'molecular cloning' or 'gene cloning' all refer to the same process: the transfer of a DNA fragment of interest from one organism to a self-replicating genetic element such as a bacterial plasmid. The DNA of interest can then be propagated in a foreign host cell. This technology has been around since the 1970s, and it has become a common practice in molecular biology labs today. Reproductive cloning is a technology used to generate an animal that has the same nuclear DNA as another currently or previously existing animal. Dolly was created by reproductive cloning technology. In a process called 'somatic cell nuclear transfer' (SCNT), sci...
Discusses current accomplishments in the field of replacing parts in the human body, including organ transplants, artificial organs and implants, and artificial joints and limbs.
Representing the perspectives of educators in both the science and mathematics communities, this publication is intended to serve as a resource for teachers of students in kindergarten through grade 12 in choosing science- and mathematics-related literature for their schools and classrooms. It contains over 1,000 annotated entries on the physical sciences, earth sciences, life sciences, and mathematics. Formatted for easy use, each entry provides information on the author, publisher and publication date, type of literature, subject emphasis, suggested grade span, and illustrations.
Series covers individuals ranging from established award winners to authors and illustrators who are just beginning their careers. Entries cover: personal life, career, writings and works in progress, adaptations, additional sources, and photographs.
Surveys programs and individuals dedicated to preserving birds and bird habitats.
First multi-year cumulation covers six years: 1965-70.
Designed to aid adults—parents, teachers, librarians—in selecting from the best of recent children's literature, this guide provides 1,400 reviews of books published between 1979 and 1984. This volume carries on the tradition established by Zena Sutherland's two earlier collections covering the periods from 1966 to 1972 and 1973 to 1978. Her 1973 edition of The Best in Children's Books was cited by the American School Board Journal as one of the outstanding books of the year in education.
Presents the history of deadly viruses, their effects on people, and the research of scientists to discover and develop treatments against them.