Wgu C190 Intro To Biology Already Passed

gene expression {Ans: process by which a gene produces its product and the product carries out its function}Features of DNA {Ans: Function: Stores genetic information. Location: Remains in the nucleus. Structure: Double helix. Sugar: Deoxyribose. Pyrimidines: Cytosine, Thymine. Purines: Adenine, guanine.}selective permeability {Ans: The cell membrane provides a semipermeable barrier between the inside and the outside of the cell. The phospholipid bilayer structure of the membrane allows selected ions and organic molecules to pass through the plasma membrane and regulates the movement of molecular substances.}sickle cell trait {Ans: symptoms shown by those possessing a heterozygous genotype for sickle cell anemia}protein {Ans: Nitrogenous organic compound that consists of large molecules composed of one or more long chains of amino acids and are an essential part of all living organisms.}habitat loss {Ans: The destruction of habitats that usually results from human activities}Symbiosis {Ans: A close relationship between two species that benefits at least one of the species.}Catalyst {Ans: A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.}Chromosome Condensation {Ans: Folding up of the chromosomes prevents transcription}substrate {Ans: A substance on which an enzyme acts.}resource