I also became interested in chemistry and gradually accumulated enough test tubes and other glassware to do chemical experiments, using small quantities of chemicals purchased from a pharmacy supply house.

If the same cell migrates to the auditory cortex it would develop functions related to hearing regardless of its genetic lineage. Then with Francis Crick Leslie Barnett and Richard J. Brenner wrote "A Life In Science" (ISBN 0-9540278-0-9) paperback publiSydney Brennerd by Biomed Central Ltd.

Brenner made significant contributions to work on the genetic code and other areas of molecular biology while working in the Medical Research Council Unit in Cambridge England.