Describe What Is Known About the Development of Right- and Left-Handedness

question 141

Essay

Describe what is known about the development of right- and left-handedness both in the United States and across the world.

---

Definitions:

Epigenetic Mark

Chemical modifications to the DNA or histone proteins that affect gene activity without altering the DNA sequence, influencing how cells read genes.

Genome

The full collection of genes or genetic material contained within a cell or an organism.

Epigenetics

Investigation into the ways organisms are affected by modifications in how genes are expressed, instead of alterations to the genetic code.

Gene-environment Interactions

The complex interplay between genetic factors and environmental influences that affects the expression of genes and can impact an individual's traits and behaviors.