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AgEn y2 genetics2

a history of mendel

in true breeding plants traits do not change over many generations
hybridise means to cross fertilise two pure breeding varieties
genes were originally called heretable or particulate factors
phenotype physical expression of genotype
alleles two different forms of a gene
if plants are pure breeding the alleles are the same
dominant alleles mask recessive alleles
alleles are found on homologous chromosomes
mendels first law the law of segregation
Locus position of allele on chromosome
homozygous both alleles are the same
heterozygous alleles are different
to find out if a gene is homozygous or heterozygous do a test cross with a double recessive allele
mendels second law law of independent assortment
Created by: MKHealy