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Genetics Vocab 1

Life Science

ribosomes makes proteins using directions from DNA
trait the different forms of a characteristic (ex: dimples or no dimples)
recessive the trait that hides in the background (represented with a lowercase letter). Can only be expressed in homozygous form
heredity the passing of physical characteristics from parents to offspring
genetics the study of heredity
mitosis cell reproduction - when one body (somatic) cell becomes two
homozygous/purebred two alleles/letters for one trait that are the same (Ex: DD or dd) can be dominant or recessive
genotype combination of alleles (letters): DD, Dd, dd
gene the factor that controls a trait you exhibit
nucleus contains DNA and controls cell activities
proteins the building blocks of cells that control your specific characteristics
alleles the letters that represent the different forms of a gene (dimples = D=present; d=dimples absent)
dominant the trait that overshadows and is expressed (capital letter)
phenotype the physical appearance of a trait (ex: dimples, no dimples)
heterozygous/hybrid two alleles/letters for one trait that are different (ex: Dd)
meiosis produces four sex cells, sperm or egg, that are used to pass a parent's traits to offspring
chromosomes contains your genes
Created by: jessica.watson