Sentences with phrase «genetic mechanisms for the changes»

«We've been able to identify some of the genetic mechanisms for the changes we see,» Rosenblum says.

Not exact matches

@Bill Deacon,»... evolutionary biology can not provide a positive causation for the digital encoding of these strands...» I'm not certain why you use the loaded language or «digital encoding», but evolution does provide a mechanism for changes in the genetic makeup of all organisms.

«The study provides new insights into evolution and genetic adaptation, and establishes a framework for investigating the biological mechanisms behind disease resistance and adaptation to climate, knowledge that could be vital for protecting honeybees in a rapidly changing world,» says Matthew Webster.

However, while the genetic factors responsible for reprogramming are well known, the mechanisms underlying the responses to induced gene expression changes are not as clear.

Early investigations into the nature of genetic evolution proposed two potential mechanisms for the origin of new features: gene duplication and divergence, and regulatory changes in gene expression.

This substantial input of variation from wild ancestors has provided the raw material for phenotypic change, but unique development and genetic mechanisms may also have assisted the course of artificial selection.

It is interesting that biology has, in the case, provided a universal theory based on a single simple mechanism (if we include genetic drift and neutral theory, though admittedly not part of Darwin's formally stated understanding), whereas physics has not done so for climate change, given that it is potentially caused by many different mechanisms.

Several candidate mechanisms of CRCI have been proposed, including inflammation and cytokine dysregulation, chemotherapy - induced epigenetic changes, blood — brain barrier disruption, hormone deficiencies, oxidative DNA damage and shortened telomere length, and genetic susceptibility.21 — 26 However, the heterogeneity and design limitations within the emerging body of evidence have led to recommendations for harmonising study methodologies and moving towards multisite, longitudinal research.3 27 Such approaches would support the demonstration of robust relationships between measurable biological processes and cognitive outcomes.

Advances in neuroscience have revealed that the process of brain development is driven by a dynamic interaction between the genome (nature) and the environment (nurture).25 Epigenetic mechanisms like DNA methylation and histone acetylation are able to transduce experiences with the environment into long - lasting, even intergenerational changes in gene expression.26 — 35 So although the inherited genetic program is thought to provide a general blueprint for brain architecture, the environment is able to influence which genes are used, when they are used during the course of development, and where they are used within the developing brain.