Identical twins each carry the same genome, but over time, can develop different phenotypes. How

step 1 In order to answer this question, let's talk about the inheritance. This question says identical

Identical twins each carry the same genome, but over time,...

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Key Concepts

Stochastic Variation

Stochastic variation involves random differences in cellular processes and developmental events. These random occurrences during cell division and development can lead to divergent outcomes in gene expression, which contribute to phenotypic differences among individuals with identical genomes.

Epigenetics

Epigenetics refers to heritable changes in gene expression that do not involve changes to the underlying DNA sequence. These modifications, such as DNA methylation and histone acetylation, can be influenced by internal signals and external environmental factors, causing variations in phenotype among individuals with the same genetic makeup.

Environmental Influences

Environmental influences encompass the external factors like diet, physical activity, exposure to toxins, and stress, which interact dynamically with an organism's biology. These factors can affect gene expression and lead to different phenotypic presentations even in genetically identical individuals.

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