Abstract

reviews Book Medical Genetics 789-792 Journal of 1987, 24, Gene Control and Phage X Human Embryo Research: Yes or No? A Genetic Switch: Ptashne. 128; £14-50.) Oxford: Cell The Ciba Foundation. (Pp 232; £6.95.) London: By M (Pp Publications. 1986. Scientific Tavistock Publications. 1986. Press/Blackwell The title of this collection of papers and associated are central to molecular genetics: Two principles discussions of a meeting held in 1985 could be is by proteins binding to gene expression regulated misleading. In a characteristically clear chapter, DNA and complex phenotypes are controlled by the .... Anne McLaren points out that in the human by coordinate regulation of multiple genes. The first all the cells derived about 16 days after fertilization, and Monod's principle was deduced from Jabob finally committed to from the fertilized egg are E coli and the second studies of the lac operon of either part of the individual embryo or outside being of the life principle was derived from analysis cycle it". It is therefore only after this period of time that X. The of the lac operon of bacteriophage simplicity the term 'embryo' might be considered legitimate. and the beautiful complexity of 0k were my first Before