Ch. 5 Vocab.
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15 terms
Terms | Definitions |
|---|---|
 Allele | an alternate form that a gene may have for a single trait; can be dominant or recessive. |
| Dominant | describes a trait that covers over, or dominantes, another form of that trait. |
| Genetic Engineering | bioligicaland chemical methods to change the arrangement of a gene's DNA to improve crop production, produce large volumes of medicine, and change how cells perform their normal functions. |
| Genetics | the study of how traits are inherited through the actions of alleles. |
| Genotype | the genetic makeup of an organism. |
| Hereditary | the passing of traits from parent to offspring. |
| Heterozygous | describes an organism with two different alleles for a trait. |
| Homozygous | describes an organism with two alleles that are the same for a trait. |
| Hybrid | an offspring that was given different genetic information for a trait from each parent. |
| Incomlete Dominance | production of a phenotype that is intermediate between the two homozygous parents. |
| Phenotype | outward physical appearence and behavior of an organism as a result of its genotype. |
| Polygenic Inheritance | occurs when a group of gene pairs act together and produces a specific trait, such a human eye color, skin color, or height. |
| Punnett Square | a tool to predict the probability of certain traits in offspring that shows the different ways alleles can combine. |
| Recessive | describes a trait that is covered over, or dominated, by another form of that trait and seems to disappear. |
| Sex-Linked Gene | an allele inherited on a sex chromosome and that can cause human genetic disorders such as color blindness and hemophilia. |
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