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book 2 chapter 1.1

TermDefinition
allele one of two or more different versions of the same gene.
dominant allele allele that masks the presence of another allele for the same gene inclusive than the kingdom.
genetics the science of heredity.
genotype alleles an individual inherits at a particular genetic locus.
heterozygote organism that inherits two different alleles for a given gene.
homozygote gene that codes of regulatory proteins that control gene expression during development.
hybrid offspring that results from a cross between two different types of parents.
law of independent assortment Mendel's second law stating that factors controlling different characteristic are inherits independently of each other.
law of segregation Mendel's first law stating that the two factors controlling a characteristic separate and go to different gametes.
locus position of a gene on a chromosome.
phenotype characteristic of an organism that depend on how the organism's genotype is expressed.
pollen tiny grains that bear the male gametes of seed plants and transfer sperm to female reproductive structures.
pollination fertilization in plants in which pollen is transferred to female gametes in an ovary.
recessive allele allele that is masked the presence of another allele for the gene when they occur together in a heterozygote.
codominance relationship between two alleles for the same gene which both alleles are expressed equally in the phenotype of the heterozygote.
incomplete dominace relationship between the alleles for a gene which one allele is only partly dominant to the other allele so an intermediate phenotype results.
polygenic characteristic characteristic, or trait, controlled by more than one gene, each of which may have two or more alleles.
probability the likelihood, or chance, than a certain event will occur.
punnet square chart for determining the expected percentages of different genotypes in the offspring of two parents.
Created by: user-1980464
 

 



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