Ecological Developmental Biology Integrating Epigenetics Medicine And Evolution Pdf

Ecological Developmental Biology

It looks at examples where the environment provides expected cues for normal development and where the organism develops improperly without such cues. Data from research on teratology, endocrine disruptors, and microbial symbioses, when integrated into a developmental context, may have enormous implications for human health as well as the overall health of Earth's ecosystems. The study of epigenetics--changes in gene expression that are not the result of changes in a gene's DNA sequence--has recently provided startling insights not only into mechanisms of development, but also into the mechanisms and processes of evolution. The notion that epialleles (changes in chromosome structure that alter gene expression) can be induced by environmental agents and transmitted across generations has altered our notions of evolution, as have new experiments documenting the genetic fixation of environmentally induced changes in development.

Developmental Biology

Science and Democracy

The relationship between science and democracy has become a much-debated issue. In recent years, we have even seen an exponential growth in literature on the subject. No doubt, the interest has partly been justified by the concern of public opinion over the technological repercussions of scientific research. Moreover, there are scientific theories that, if they were accepted, would allegedly imply the adoption of policies that have wide social consequences, as well as a rethinking of deeply-rooted habits on the part of the citizens. These considerations alone allow us to understand the reasons for the interest in the, at times troublesome, relationships between science and public opinion which characterize democratic societies.