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Chapter 3

Hereditory Passing of Physical characteristics from parent to offspring.
Purebred Many generations that have the same form of trait.
Trait Each specific characteristic.
Gene Describes the factors that control a trait.
Recessive Allele Is hidden whenever the dominant allele is present.
Genetics The scientific study of hereditary.
Allele Are the different forms of a gene.
Hybrid An organism that has two different alleles for a trait.
Fertillization A new organism begins to form when egg and sperm cells join in the process.
Dominant Allele One whose trait always shows up in the organism when the allele is present.
Probabillity A number that describes how likely it is to happen.
Punnet Square A chart that shows all the possible ways alleles can combine in a genetic cross.
Phenotype Physical appearance or visible traits.
Genotype Genetic makeup or alleles.
Homozygous Has two identical alleles for a trait.
Heterozygous Has two different alleles for a trait.
codomenance both alleles are dominant
incomplete dominance both expressed equally
multiple allels determane the trait
meiosis two genes effect
meiosis number of chromosomes
Created by: cel201118894