Modern genetics allow people to predict the appearance and possible abnormalities of future generations. The most prevalent human traits are brown eyes and dark hair, while the genes of blue eyes and fair hair are recessive (Lin et al., 2016). Moreover, such characteristics as freckles and dimples have the dominant genes, and their absence is recessive (Lin et al., 2016). My parents’ genes include brown eyes and black hair in my family, and I have these traits too. It is difficult to determine whose alleles were dominant, however, my height is from my father’s side. My sister and I have no dimples, while her son has that trait because his father’s alleles were dominant. If my grandmother had freckles, I could have them too, according to the pedigree (Khan Academy, 2018). My aunt has grey eyes, but her brother and parents’ eyes are brown, yet her grandfather had grey eyes.
Genetic testing allows couples to define any severe genes in eight-cell embryos and might avoid implanting the highest risk-rated ones. It is an acceptable approach because it has a significant impact on a future child’s and further generations’ health. A couple might also want to select embryos with traits such as freckles to develop a baby with them or without. This example’s discussion should be based on the particular action with a gene, its revising, correcting, transferring, and evaluating if it is acceptable to make major changes for an undangerous trait (Cwik, 2020). The scientific opportunities now outline genetic testing’s features, and I think people should not put other limitations on it. If parents want their children to have certain traits, it is in their rights to make decisions about eye and hair color, freckles, or disease-related genes.
References
Cwik, B. (2020). Revising, correcting, and transferring genes. The American Journal of Bioethics, 20(8), 7-18. Web.
Khan Academy. (2018). Pedigrees. YouTube. Web.
Lin, B. D., Willemsen, G., Abdellaoui, A., Bartels, M., Ehli, E. A., Davies, G. E., & Hottenga, J. J. (2016). The genetic overlap between hair and eye color. Twin Research and Human Genetics, 19(6), 595-599. Web.