This exam counts for 70 points, but there are a total of 72 points with all the questions below. Or, do all of the questions and potentially get a couple extra points.
Genes are the hereditary units on chromosomes that are passed from one generation to the next.
A gene is the region of a chromosome that codes for one protein. The order of nucleotides in the strands of DNA are what determine the amino acid sequence in proteins. One protein from one gene is always associated with one and only one trait in an organism, and so that single gene exerts complete control over the trait with which it is associated. Different organisms use different nucleotides to code for their proteins, but the order of nucleotide bases is the same in all organisms. The entire human genome consists of 46 pairs of genes, plus one pair of sex determining genes.