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13 Cards in this Set
- Front
- Back
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heredity |
the passing of traits from perent to offspring |
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trait |
a characteristic that an organism can pass on to its offspring through its genes |
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genetics |
the scientificstudy of heredity ( how genes and traits are passed from parents to offspring) |
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gene |
the set of info that controls a trait ;a segment of dna on a chromosone that codes for a specific trait |
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dominan Allele |
an allele whose trait always shows up in the organism when the allele is present |
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recessive allele |
an allele that does not show up when a dominant allele is present |
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punnett square |
a chart that shows all the possibe combonations of allele from a genetic cross |
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phenotype |
an organism's physical apperance , or visible traits |
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genotype |
the alleles in and organisum has . for example :nBb or bb. |
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homezygous |
having two identical alleles for a trait |
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heterozygous: |
having two different alleles for a trait |
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codominance |
a condition where neither of the two alleles of a gene is dominant or recessive . for example : if a birld is codominant for white and black feathers all alleles will be expressed in the phenotype |
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fertilization |
the process in witch and egg call and a sperm cell join to form a new organism |
