C12 Section 3: Modeling Mendel's Laws
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16 terms
Terms | Definitions |
|---|---|
 Punnett square | a model that predicts the likely outcomes of a genetic cross |
| A Punnett square shows all of the _______ that could result from a given cross | genotypes |
| A simple Punnett square can be used to analyze a _________ cross | monohybrid |
| Monohybrid Homozygous Crosses | cross between two homozygous plants YY x yy=Yy |
| Monohybrid Heterozygous Crosses | Predicts the results of a monohybrid cross between two heterozygous genotypes |
| What is the genotypic ratio of a monohybrid heterozygous cross? | 1 YY: 2 Yy: 1 yy |
| What is the phenotypic ratio of a monohybrid heterozygous cross? | 3 yellow: 1 green |
| ________ is the likelihood that a specific event will occur | Probability |
| Law of segregation states that each gamete has an _____ chance of receiving either _ of the two alleles | equal, 1 |
| pedigree | a family history that shows how a trait is inherited over several generations |
| A simple way to model inheritance is to use a _______ | pedigree |
| A healthcare worker may use a ______ to help a family understand a _______ ________ | pedigree, genetic disorder |
| A pedigree can help answer questions about what 3 aspects of inheritance? | sex linkage, dominance, heterozygosity |
| A sex linked gene is located on either the _ or _ chromosome, but most are located on the _ chromosome | X, Y, X |
| If a person has a trait that is autosomal and dominant and has even one dominant allele, they (will/will not) show the trait | will |
| If a person has a recessive trait and only one recessive allele, he or she (will/will not) show the trait, but may pass it on | will not |
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