Chapter 5 Heredity
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Created by:
KristinSchlotter Plus on March 5, 2012
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13 terms
Terms | Definitions |
|---|---|
 Heredity | passing of traits from parents to offspring |
| Alleles | alternate form of that a gene may have for a single trait which can be dominant or recessive |
| Genetics | the study of how traits are inherited through the actions of alleles |
| Hybrid | an offspring that was given different genetic information for a trait from each parent |
| Purebred | an organism that always produces the same traits generation after generation |
| Dominant factor | describes a trait that covers over, or dominates another form of that trait (capital letter) |
| Recessive factor | describes a trait that is covered over or dominated by another trait (lower case letter) |
| Probability | a branch of mathematics that helps you predict the chance that something will happen |
| Punnett Square | a tool used to predict the probability of certain traits in offspring that shows the different ways alleles can combine |
| Genotype | genetic make up of an organism (letter combination DD, Dd, dd) |
| Phenotype | outward physical appearance or behavior of an organism (how it looks/acts- dimples or no dimples) |
| Homozygous | describes an organism with two alleles that are the same for a trait (Dominant DD or Recessive dd) |
| Heterozygous | describe an organism with two different alleles for a trait (Dd) |
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