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heredity & genetics

TermDefinition
heredity the passing of traits from parent to offspring
genetics the study of how traits are passed to offspring
gene set of instruction for an inherited trait
allele part of gene that determines your traits
dominant allele describes a trait that will always show up if present in the genes
recessive allele describes a trait that is covered over by another form of that trait
chromosomes structures in the nucleus that carry genetic information (DNA)
trait characteristics controlled by genes
hybrid offspring that was given different genetic information for a trait from each parent (Tt) same as heterozygous
purebred organism that has 2 identical alleles for a trait
heterozygous describes an organism with 2 different alleles for a trait
homozygous describes an organism with 2 alleles that are same for a trait
phenotype the outward physical appearance & behavior of an organism
genotype the entire genetic makeup of an organism (all the genes an organism has)
punnet square a tool (square) used to show the probability of different ways alleles can combine
sex chromosome pair of chromosomes that determines the sex of the indivual the xx female sex chromosome xy male sex chromosome
genetic engineering used to help produce large volumes of medicine, change how cells perform etc.
homologous chromosomes chromosomes that have the same sequence of genes & the same structure
sex linked gene allele inherited on a sex chromosome that can cause human genetic disorder ( heart disease, color blind, etc.)
incomplete dominance means that 1 trait is not completely dominant over another
co-dominant organism that has both alleles of a gene displays both phenotypes
Created by: ragan_eve
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