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Vocab. #4 Amaya
life science: Heredity
| Term | Definition |
|---|---|
| Chromosomes | A doubled rod of condensed chromatin. |
| Genes | A segment of DNA on chromosome that codes for a specific trait. |
| Dominant alleles | An allele whose trait always shows up in the organism when the allele is present. |
| Recessive alleles | An allele that is masked when a dominant allele is present. |
| Homozygous | Having two identical alleles for a trait. |
| Heterozygous | Having two different alleles for a trait. |
| Phenotype | An organism's physical appearance, or visible traits. |
| Genotype | An organism's genetic makeup, or allele combinations. |
| Codominance | A condition in which neither of two alleles of a gene is dominant or recessive. |
| Alleles | The different forms of a gene. |