Nearly the whole of my research career took place in the present ‘golden age’ for the study of DNA, genes and genomes. At the end of the 1960s scientists had indicated how useful it would be to be able to isolate individual genes in order to study their structure and function. That wish was fulfilled in the spin-offs from the invention in the early 1970s, of genetic modification (genetic engineering), a scientific milestone that marked the start of this golden age.
By the end of the 20thcentury experiments were being done, that thirty years earlier were not even dreamed of. This was certainly true in my research group’s work on the biochemistry and genetics of DNA replication, giving us the real privilege of uncovering some of the beautifully complex and intricate mechanisms used by cells in ‘managing’ and copying their genetic material. Continue reading →
One of the people who set Charles Darwin along the road to evolutionary theory was not a scientist, but the Governor of the Galapagos Islands, Nicholas Lawson. When Darwin and the Beagle crew landed on Charles Island, Lawson invited him to dinner. As they talked, Lawson mentioned that the giant tortoises for which the Galapagos chain was named varied noticeably between islands. In fact, said Lawson, if any tortoise was brought to him, he could identify which island it came from.
It turns out that the tortoise-naming party trick was not exclusively Lawson’s. Whether he was just repeating what the locals said, or had actually studied the tortoises personally, the fact remains that the person who set Darwin on the course of studying variation among species on the Galapagos islands was not a scientist.
John Bryant, the author of last week’s guest post, told this story during his lecture at this year’s Faraday Summer course, and I enjoyed it because Continue reading →
Children love to watch caterpillars turn into butterflies, and scientists are no less fascinated by this process. I have mentioned biologist John Bryant’s contribution to the science and faith discussion on this blog a number of times. In this guest post, he writes about his sense of wonder at the processes he studies.
I have been fascinated by the natural world for as long as I can remember, and that fascination led to a career in biology. As a professional biologist my main focus has been the way DNA works as genes, and especially the processes by which DNA is replicated prior to cell division.
Regular readers of this blog will know of the excitement, awe and wonder I have Continue reading →