Articles tagged with Lamarckism
Scientists have discovered that roundworms can pass on immunity to a virus through small RNA molecules, which were not dependent on the organism's genome. This finding suggests that Lamarckian inheritance may provide adaptive advantages to an animal by allowing them to hold onto beneficial genes until needed.
A new study re-examines Kammerer's experiments and finds remarkable resemblances to newly discovered aspects of epigenetics. Kammerer's data shows consistency with current epigenetic mechanisms, providing new biological arguments in favor of the authenticity of his midwife toad experiments.
A study published in The Journal of Neuroscience found that a mother's enriched environment during her youth can significantly impact her child's learning disorder severity. This effect, known as transgenerational inheritance, was observed even when the offspring were raised by non-enriched foster mothers.
Epigenetic modifications, such as DNA methylation and DNA packaging, can be inherited and affect gene expression. Recent studies in mice and rats have shown that early nutritional environment and behavioral experiences can influence epigenetic marks, which can be 'remembered' in cell divisions.