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Definition
| organism that has different genetic info for a trait from each parent |
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Term
| p(parent generation)generation |
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Definition
| the 1st 2 individuals that mate in a genetic cross |
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Definition
| 1st offspring from a cross (breeding) of two varieties in the (p) generation. |
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Definition
| genetic trait that mask or dominate a characteristic |
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Definition
| Genetic trait of an organism that can be masked by the dominant form of a trait |
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Definition
| different versions of the same traits |
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Term
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Definition
| Each pair of alleles separate during meiosis |
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Term
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Definition
| When 2 alleles are different, hybrid, 1 allel controls trait other remains hidden |
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Term
| Law of Independent Assortment |
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Definition
| Gene pairs segregate randomly & independent of each other |
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Definition
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Term
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Definition
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Definition
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Definition
| both alleles are different |
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Term
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Definition
| the likelihood that something will occur |
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Term
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Definition
| Grio for organizing genetic information that shows probabilities |
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Definition
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Definition
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Term
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Definition
| a cross determine the genotype of an organism |
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Term
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Definition
| heterozygous individual expresses phenotype different than the homozygous phenotype |
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Term
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Definition
| heterozygote shows the phenotype that is intermediate b/w 2 homozygous phenotypes |
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Term
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Definition
| a heterozygote both fully expressed |
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Term
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Definition
| traits controlled by 2 or more gene pairs |
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Term
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Definition
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Term
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Definition
| X & Y chrom. carry other traits not associated w/ sex of offspring |
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Term
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Definition
| genes found on same chrom form a linkage group |
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Term
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Definition
| Traits controlled by a single allele for a gene |
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Term
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Definition
| traits such as blood type, which is controlled by many different alleles |
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Term
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Definition
traits controlled by multiple alleles
-EX. skin,eye,hair color |
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Term
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Definition
| traits influence by sex hormones |
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Term
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Definition
| genetic analysis can be done on an unborn child using aminotic fluid |
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Term
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Definition
a change in the DNA of an organism
-can involve an entire chromosome, or a single nucleotide |
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Term
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Definition
mutation of the gametes
-doesnt affect organisms itself, but can be passed onto offspring |
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Term
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Definition
mutation of all other the cells in the body
-ex.skin cancer |
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Term
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Definition
change in structure of a chromosome or loss of an entire chromosome
-always affects organisms |
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Term
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Definition
| end of a chromosome breaks off, or 2 simultaneous breaks lead to loss of a segment |
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Term
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Definition
| segment of a chromosome breaks off & reattaches in reverse orientation |
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Term
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Definition
| movement of a chromsome segment to another nonhomologous chromosome |
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Term
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Definition
| presence of a chromosome segment more than once in the same chromosome |
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Term
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Definition
| when chromosomes fail to separate during meiosis, causeing problems such as down syndrome |
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Term
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Definition
| substitution,addition,or removal of a single nucleotide |
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Term
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Definition
| one nucleotide is added or deleted causing entire strand of DNA to shift, making wrong protein |
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Term
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Definition
| used to see how traits move through a family |
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