8th Heredity-Miller

15 terms by strefelerk 

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Mrs. Miller's list is slightly different

traits

characteristics that an organism can pass on to its offspring through its genes

heredity

the passing of traits from parents to offspring

genes

factors that control traits

alleles

different forms of a gene

dominant allele

an allele whose trait always shows up in the organism when the allele is present; shown as a capital letter

recessive allele

asn allele that is masked when a dominant allele is present; shown as a lowercase letter

hybrid

an organism that has two different alleles for a trait

probability

the likelihood that a particular event will occur

Punnett Square

a chart that shows all the possible combinations of alleles that can result from a genetic cross

phenotype

an organism's physical appearance, or visible traits

genotype

an organism's genetic makeup, or allele combinations

homozygous

having 2 identical alleles for a trait

heterozygous

having 2 different alleles for a trait

codominance

a condition in which neither of 2 alleles of a gene is dominant or recessive

mutations

a change in a gene or chromosome

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