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Science 5.4 and 5.5

Science Unit 5.

gene one set of instructions for an inherited trait
allele one of the alternative forms of a gene that governs a characteristic, such as hair color
Genotype the entire genetic makeup of an organism also the combination of genes for one or specific traits
Phenotype an organism's appearance or other delectable characteristic
Dominant in genetics describes an allele that is fully expressed whenever the allele is present in an individual.
Recessive describes an allele that will be masked unless the organism is homozygous for the trait.
Incomplete Dominance a condition in which two alleles are expressed such that the phenotype of a homozygous individual is an intermediate of the phenotypes of the two homozygous.
Codominace a condition in which two alleles are expressed such that the phenotype of a heterozygous individual is a combination of the phenotype of the two homozygous parents.
Pennett Square a graphic used to predict the results of a genetic cross.
Probability the likelihood that a possible future event will occur in any given instance of the event
Ratio a comparison of two numbers using division
Pedigree a diagram that shows the occurrence of a genetic trait in several generations of a family.
heredity the passing of genetic material from parent of offspring.
Created by: ks.28966
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