| Term 
 | Definition 
 
        | switching the pollen source (male or female) |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | traits are determined by genes which exist in pairs. Each parent only gives one gene and this gene is random. |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | alternative forms that genes can exist in for example Y and y (yellow or green allele) |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | intermediate phenotype ex. pink |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Phenotype is both alleles ex. blood type |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | for some traits, the phenotype can be affected nu alleles at two or more different genes (enzymes) |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | mutants that have multiple phenotypic effects |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | point where crossing over occurs during meiosis |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
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        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | homologous chromosomes pairs line up |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | when pair up, offers precise pairing |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Klinefelters syndrome-sterile |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | individuals that have a normal chromosomal constitution |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | abnormal number of chromosomes |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | inactivated tightly packed x chromosome |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | loosely packed x chromosome |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | the process in which one of the mammalian x chromosomes is inactivated; equalizing the number of active x linked genes in the two sexes |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | the percent of genotypically mutant individuals that actually exhibit the mutant phenotype |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | all mutant individuals show mutant phenotype |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | not all mutant individuals show the mutant phenotype |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | all the genes that are linked to each other; all the genes that map to the same chromosome |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | site on the chromosome where the gene is located |  | 
        |  |