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Why Does the Same Drug Affect People Differently?

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Why Does The Same Drug Affect People Differently?
By: Brianna Morse
Basic Genetics and the Inheritance of Genes
What are Genetics? Have you ever wondered why you have your mother’s eyes of your father’s hair color? The simplest answer for this would be genetics. Genetics is the study of heredity or inheritance. Genetics helps to explain how traits are passed from parents to their young. Parents pass traits to their young through gene transmission (for example hair and eye color, shape of ears, cheek bones, and mouth shape). Genes are located on chromosomes and consist of DNA (A chromosome is a long, stringy aggregate of genes that carries heredity information (DNA) and is formed from condensed chromatin). They contain specific instructions for protein synthesis. A protein synthesis is the process in which cells build proteins, and a protein is a dietary component that helps with things such as building strong muscles and other parts of the body.

Genetic Inheritance of Single Gene Disorders The genetic inheritance process can be useful in predicting what sorts of disorders or mutations that an offspring will have in the future. This can basically be explained and shown in a punnett square. A punnett square is a tool that helps to show all possible combinations of an offspring in a cross of parents the DNA with known genotypes in order to predict the probability of their offspring possessing certain sets of traits. It makes a grid using letters, capital letters to represent dominant traits and lower case letters to represent recessive traits. With this tool, the known genotypes of each parent are shown to help predict the possible genotypes of their offspring. It shows how traits are passed on to offspring from their parents.

The Body
Immune System Disorders
Inherited immune system disorders are diseases where children are born without an immune system

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