• Notes Unit 6

    Probability: chances of something happening

    Heredity: the passing of traits from parent to offspring

    Genes: instructions for an inherited trait

    alleles: Different forms of a gene

    Characteristic: a larger, broader version (ie. hair color)

    Trait: Specific forms of a characteristic

     Traits are like curly, where the characteristic would be hair

    alleles are singular - allele


    Punnetts Square: Used to organize different gene combinations


    Homologenous/Homozygous: same genes

    Heterogenous/heterozygous: different genes


    Dominiant: stronger, will show

    Recessive: weaker will not always show and sometimes skips a generation


    phenotype: what appears - what is seen by the world

    geneotype: what's on the inside (the genes)


    Sex traits: XX (Female), XY (Male)

    Co dominant: Equal dominance in a phenotype (purple wiht white spots)

    Incomplete Dominance: combination of traits - like lavender


    Pedigree: diagram used to chart a trait in a family tree

    Circle is femal, Male is square

    Colored in is "has the trait", blank does not - half colored in means heterozygous (and it depends on if the trait is dominant or not if it will appear)


    IN a plant - they can self polinate (clone) or corss polinate (two plants fertilize one seed) - humans cannot self polinate - plants have both male and female parts.