homozygous, a pair of alleles that are the same, heterozygous, a pair of different alleles, phenotype, how a characteristic is expressed, genotype, the combination of alleles that determine a characteristic, gene, a section of DNA that codes for a certain characteristic, allele, a form of a gene e.g brown and blonde for hair colour, nucleus, part of the cell where all the genetic information is contained, dominant, the allele for Polydactly is this, recessive, the allele for cystic fibrosis is this, chromosome, a collection of genes found in the nucleus, they occur in pairs with 1 from each parent.

inheritance

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