In the previous post, Three Chromosomes in a Trench Coat, we learned that 1) a phenotype is the observable characteristics of an organism, 2) the phenotype is the result of interactions between the genome and the environment, and 3) the phenotype is not just the appearance of the organism but also includes where the organism is able to live. I also discussed why I think understanding about phenotypes is interesting and important. In this installment we will take a look at some of the nitty-gritty mechanics involved in turning a genotype into a phenotype. We will also learn something about epigenetics, a collection of processes that are integral to the realization of a phenotype from a genotype and a term that makes a semi-regular appearance the news in discussions about identical twins and cancer. 

Continue reading the original post: https://blog.emergingscholars.org/2021/10/science-corner-more-than-three-chromosomes-in-a-trench-coat-part-2/