Heredity and genetics involves DNA and chromosomes. DNA carries genes in cells as hereditary material, and threads of DNA are chromosomes. Heredity is the passage of genes. Genetics is the passage of genes. When an egg becomes fertilized it is called a zygote. In this egg genotypes and phenotypes are formed. Genotypes are the combination of genes form the mother and father. Phenotypes are the combinations that show. Alleles are what separate the two. Alleles are variations in how genes are expressed through dominance and restiveness.
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Chapter 2This chapter talks about the physical development though one's life. It categorizes them into 6 stages. Using this in my future It is important to understand how the body physically develops, so that the teacher can understand who is happing to the child at the time. In my case, teaching high school, I need to be aware of eating disorders and how the adolescents view their bodies.
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