chromosomes is a packaged and organized structure containing most of the DNA ex is
Gene is the molecular unit of heredity of a living organism.
Traitsa is distinguishing characteristic or quality, especially of one's personalnature:
dominant gene is win you have one gene that is dominant lke brown eyes
recessive gene is win a gene is not dominant lke if u have blue eyes but your dad got brow and your mom got blue eyes
genotype is an organism, or an individual usually with reference to a specific characteristic.
phenotype is the composite