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Mendelian Genetics
Term | Definition |
---|---|
Homozygous | A genotype with two of the same alleles |
Heterozygous | A genotype with two different alleles |
Dominant | An allele that always is expressed (shown) if it is inherited. Use an upper-case letter |
Recessive | An allele that is only expressed when no dominant allele is inherited. Use a lower-case letter! |
Genotype | The genetic makeup, or allele combinations, an organisms has. |
Phenotype | the physical appearance, or traits, an organism has. |
Purebred | Another term for homozygous. The result of many generations of breeding only homozygous organisms together. |
Hybrid | Another term for heterozygous. A mix of two varieties of a species. |
Allele | A version, or form of a gene. Like a "flavor." |
Punnett Square | A tool for predicting the probability of genotypes and phenotypes of offspring. |