click below
click below
Normal Size Small Size show me how
Heredity vocab schoo
| Question | Answer |
|---|---|
| trait | a characteristic that an organism can pass on to its offspring through its genes |
| heredity | The passing of traits from parents to offspring |
| purebred | an organism that always produces offspring with the same form of a trait as the parent. |
| gene | segment of DNA that codes for a specific trait |
| alleles | different forms of a gene |
| recessive alleles | an allele that is masked when a dominant allele is present |
| hybrid | an organism that has two different alleles for a trait; it is heterozygous |
| genetics | the study of heredity |
| dominant | allele whose trait always shows up in the organism |
| probability | the likelihood that a particular event will occur |
| punnett square | a chart that shows all the possible combinations of alleles that can result from a genetic cross |
| genotype | an organism's genetic makeup |
| phenotype | an organism's physical appearance |
| codominance | condition in which neither two alleles is dominant or recessive |
| homozygous | having two identical alleles for a trait |
| heterozygous | having two different alleles for a trait |
| incomplete dominance | each allele has its own degree of influence |
| hetero | other |
| homo | same |
| di/diplo | two |
| variation | any difference between individuals of the same species |
| pedigree | a diagram that shows the occurrence of a genetic trait in several generations of a family |
| dihybrid | hybrid involving two genes |
| self-pollination | the transfer of pollen from the anther to the stigma of the same flower |
| cross pollination | The transfer of pollen from an anther of the flower of one plant to a stigma of the flower of another plant |