Owls. Barn Owl (B) R3cwe,R4p; Barred Owl (B) R3p,R4cwe; Boreal Owl (B) R4s; Burrowing Owl (B) S3w,S4pe; Flammulated Owl (B) S3cwe,S4p; Great Gray Owl (B) R3cwe,R4p; Great Horned Owl (B) R2s; Long-eared Owl (B) R3s; Northern Hawk Owl (B) R5p, M6w; Northern Pygmy-Owl (B) R3s; Northern Saw-whet Owl (B) R2s; Short-eared Owl (B) R3s; Snowy Owl MW4s; Western Screech-Owl (B) R2cwe,R3p
Definition of genealogy for Students. plural. genealogies. 1 : a line of ancestors of a person or family or a history of such a line of ancestors. 2 : the study of family lines of ancestors.
What is a gene? A gene is the basic physical and functional unit of heredity. Genes, which are made up of DNA, act as instructions to make molecules called proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases. The Human Genome Project has estimated that humans have between 20,000 and 25,000 genes. Every person has two copies of each gene, one inherited from each parent. Most genes are the same in all people, but a small number of genes (less than 1 percent of the total) are slightly different between people. Alleles are forms of the same gene with small differences in their sequence of DNA bases.