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Genetics & Heredity
Term | Definition |
---|---|
genes | factors that control traits |
genetics | the study of heredity |
heredity | passing of traits from parents to offspring |
Punnett Squares | a chart that shows all possible allele combinations for a genetic cross |
heterozygous | an organism that has two different alleles for a trait |
homozygous | an organism that has two identical alleles for a trait |
Pedigree | a chart that traces the inheritance of a trait/disease through a family |
Mutations | causes a cell to produce an incorrect protein during protein synthesis |
RNA | molecule that copies the message from DNA and translates it during protein synthesis; has one strand |
DNA | molecule that is made up of 4 nitrogen bases and has the blueprint that controls our traits; has two strands |
gamete | egg and sperm cell |
meiosis | cell division that produces sex cells (sexual reproduction) |
mitosis | cell division that produces identical daughter cells (asexual reproduction) |
phenotype | physical expression of a trait in an organism |
genotype | an organism's allele combination or genetic makeup |
carrier | |
chromosome | condensed DNA |