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Heredity/Genetics

7.14AC Heredity/Genetics

TermDefinition
Heredity The transfer of genetic information from parent to offspring.
Deoxyribonucleic Acid (DNA) Contains information that forms the hereditary material of all cells.
Chromosome A single, highly organized and structured piece of DNA.
Genes The basic physical and functional unit of heredity made up of DNA.
Genotype The exact genetic information carried by a single individual.
Phenotype The physical appearance of an organism.
Dominant An allele that is always expressed.
Recessive An allele that is only expressed if there is no different allele present.
Trait A characteristic of an organism; can be genetic or acquired.
Allele Different forms of a gene.
Homozygous Having two identical alleles for a particular trait.
Heterozygous Having 2 different alleles for a particular trait.