DNA - Deoxyribose nucleic acid is the genetic information passed down from one generation to the next, Chromosomes - are made up of DNA and found in every cell in our bodies, Gene - a length of DNA that codes for a particular trait, Alleles - Alternate forms or variants of a gene, Genotype - the genetic information on a pair of alleles, Recessive allele - is expressed in the phenotype only when paired with another recessive allele, Phenotype - is the visible expression of a genotype, Gametes or sex cells - contain half the number of chromosomes as a normal body cell, Homozygous genotype - when both alleles in the genotype are the same, Heterozygous genotype - when the alleles in the genotype are not the same (that is, one is dominant and one is recessive) , Dominant allele - when one is present in the genotype, the dominant trait is always expressed in the phenotype, Punnett square - can be used to determine genotypes and phenotypes when studying inheritance controlled by one gene with 2 alleles,

Yr 10 inheritance recap

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