The nitrogen oxides are not all bad. They are both used in the lead chamber process as catalysts to convert SO2 to SO3, which is the essential first step in the production of sulphuric acid. They are also precursors in the Ostwald Process for the manufacture of nitric acid (see below).
Single Gene Traits in Humans. The following is a list of some autosomal human traits that have been attributed to a single gene. Although clearly other genes are involved, the inheritance of each of these phenotypic traits acts as if it were governed by a single gene. First, indicate your expression of the trait (i.e., circle the appropriate phenotype).
Genes are typically not the only determinants of traits. Although a few traits, such as blood type, are determined strictly by genetics, most traits are influenced both by genes and the environment in which we live.We do not inherit a disease, instead we inherit susceptibility factors that increase risk for a disease.For example, recent studies suggest 50 to 60 percent of alcoholism risk is genetic (National Institute on Alcohol Abuse and Alcoholism). This means the other 40 to 50 percent of the risk is environmental.enes are typically not the only determinants of traits. Although a few traits, such as blood type, are determined strictly by genetics, most traits are influenced both by genes and the environment in which we live.