The Origin of Dogs Traces Back to Two Separate Locations

by Jenna Mallon (’18) Although it is a common fact that domestic dogs originated from wolves, there are still speculations concerning the geographical and temporal origins of man’s best friend. There are disagreements over when and where dogs were domesticated. Despite evidence that points to the Paleolithic Era, some archeologists argue that dogs could have been independently domesticated in two separate regions: Eastern and Western … Continue reading The Origin of Dogs Traces Back to Two Separate Locations

Parental phenotype may affect offspring phenotype

By Shannon Bohman ’19 An individual’s genotype, composed of the maternal and paternal’s genomes, is expressed physically as a phenotype.  A team of Netherland geneticists found that the phenotype of an offspring depends partly on the environmental factors experienced by his or her parents. One species in which such transgenerational effects are evident is Arabidopsis thaliana, a plant species whose small genome and short generation … Continue reading Parental phenotype may affect offspring phenotype