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Heredity/Genetics
7.14AC Heredity/Genetics
Term | Definition |
---|---|
HEREDITY | Transfer of genetic information from parent to offspring. |
DEOXYRIBONUCLEIC ACID (DNA) | Contains information that forms the hereditary material of all cells. |
CHROMOSOME | Single, highly organized and structured piece of DNA. |
GENES | Basic physical and functional unit of heredity made up of DNA. |
GENOTYPE | Exact genetic information carried by a single individual. |
PHENOTYPE | Physical appearance of an organism. |
DOMINANT | Allele that is always expressed. |
RECESSIVE | Allele that is only expressed if there is no different allele present. |
TRAIT | Characteristic of an organism; can be genetic or acquired. |
ALLELE | Different versions of a gene. |
HOMOZYGOUS | Having two identical alleles for a particular trait. |
HETEROZYGOUS | Having 2 different alleles for a particular trait. |
NUCLEUS | Membrane-bound structure in eukaryotic cells that contains the DNA. |
GENETICS | The scientific study of heredity. |