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).
Traits are the physical manifestation of your genes. Brown hair or blue eyes are examples of traits. Genes, are pieces of DNA which code for proteins, which subsequently result in traits. So, if you have a really long piece of DNA, a gene is a part of that DNA. That part gets 'transcribed' to mRNA, which gets 'translated' into protein. The protein is what is responsible for traits. Alleles are 'flavors' of genes. We all have 46 chromosomes (humans). 23 are from the mother and 23 are from the father.