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AgEn y2 genetics2
a history of mendel
Question | Answer |
---|---|
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 |