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4.1 Vocabulary

TermDefinition
heredity passing of traits from parents to offspring
tarit characteristic that an organism can pass on to its offspring through its genes
genetics scientific study of heredity
fertilization process in which an egg cell and a sperm cell join to form a new organism
purebred the offspring of many generations that have the same traits
gene set of information that controls a trait, a segment of DNA on a chromosome that codes for specific trait
allele different forms of gene
dominant gene a gene whose trait always shows up in the organism when allele is present
recessive trait gene that is masked when a dominant allele is present
hybrid organism that has two different allele for trait, and organism that is heterozygous for a particular trait
probability number that describes how likely it is that an event will occur
punnett square chart that shows all The possible combinations of alleles that can result from a genetic crosss
phenotype organism physical appearance, or visible traits
genotype organism genetic makeup, or allele combinations
homozygous dominant having two dominant alleles for a trait
homozygous recessive having two recessive alleles for a trait
heterozygous having two different alleles for a trait
DNA deoxyribonucleic acid
codominance condition in which neither of two alleles of a gene is dominant or recessive
Created by: beachboy22
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