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Genetics.

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Presentation on theme: "Genetics."— Presentation transcript:

1 Genetics

2 The Law of Segregation Paired alleles separate during the formation of gametes

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4 Law of Independent Assortment
Factors separate independently of one another during the formation of gametes

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7 Incomplete Dominance Neither allele is completely dominant over the other

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9 Codominance Both alleles are expressed

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11 Dihybrid crosses 2 traits are tracked Find genotype for parents
example- predicting for seed texture & seed color Find genotype for parents Create possible gametes using FOIL Using a punnett square to determine possible offspring Cross RRYY with rryy

12 Brown eyes & brown hair are both dominant
A blonde, blue eye girl crosses with a homozygous brown hair & brown-eyed boy. What are the genotypic & phenotypic ratios?

13 Brown eyes & brown hair are both dominant
A heterozygous boy crosses with a heterozygous girl-what are the genotypic and phenotypic ratios?

14 Brown eyes & brown hair are both dominant
A homozygous dominant for both traits crosses with a heterozygous dominant for hair and a homozygous recessive for eyes. What are the ratios?


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