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science vocab

Definition
Heredity Passing of traits from parent to offspring.
Allele A different form a gene may have for a trait.
Genetics The science of how traits are inherited through alleles passed from one generation to another.
Dominant The form of a trait that appears to dominate or mask another form of the same trait.
Recessive The form of a trait that seems to disappear when a dominant trait is present.
Punnett squar A tool that shows how genes can combine; used to predict the probability of types of offspring.
Genotype The genetic makeup of an organism for a trait.
Homozygous - An organism that has two identical alleles for a trait.
Heterozygous An organism that has two different alleles for a trait.
Phenotype A physical trait that shows as a result of an organism’s particular genotype.
Incomplete dominance The production of a phenotype that is a blend of both alleles.
Multiple alleles Having more than two alleles that control a trait.
Codominance Both alleles are fully expressed at the same time.
Polygenic inheritance Occurs when groups of gene pairs act together to produce a specific trait.
Sex-linked gene An allele inherited on a chromosome.
Pedigree- A diagram that shows the occurrence of a trait in a family.
Genetic engineering Biological and chemical methods to change a cell’s DNA sequence to produce desirable traits or eliminate undesirable traits.
Genome A map of the location of individual genes on every chromosome of an individual.
Created by: bran3812
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