how the cross between a heterozygous purple flowered pea plant and a white pea plant.            What is the genotypic ratio of the above cross?   0:4:0   0:2:2   2:2:0   1:2:1   2:1:1 What is the phenotypic ratio of the above cross?   2:2   4:0   0:4   0:4:0   0:2:2

Part 3: Use homologous chromosomes marked with alleles “A” and “a” and a second pair of homologs marked with alleles “B” and “b”. to demonstrate Mendel’s Principle of Independent Assortment in cells in Meiosis. Indicate what phase this happens in meiosis. Part 4: Use AaBb x AaBb and two Punnett squares to demonstrate Mendel’s Principle of Independent Assortment. Write the expected phenotypic ratios under each Punnett square. Now, multiply the probabilities of each event to get combined probabilities for BOTH genes. i.e. the chance of being homozygous recessive for both genes is 1/4 x 1/4 =1/16.

Mendelian Genetics Worksheet Name Hour Fill in the Punnett squares for each cross given to determine the phenotype and genotype ratio's of the offspring Crosses with one homozygous dominant parent: AA x AA A AA x Aa A АА х а A AA x aa A A A A A a A a a Offspring Genotypes: AA AA AA Aa Offspring Phenotypes: Aa Aa aa aa aa Dominant Dominant Recessive Dominant Recessive Recessive_ _ Crosses with one heterozygous parent: Aа х АА Аа х Аа Аа х аа A a A a A a A a A a a Offspring Genotypes: AA_ Aa_ aa AA Aa aa AA_ Aa aa Offspring Phenotypes: Dominant Recessive Dominant Dominant Recessive Recessive _ Crosses with one homozygous recessive parent: aa x AA aa x Aa аа х аа a a a a a a A A a A a a Offspring Genotypes: AA Aa_aa AALAA_aa AA Aa_ aa_ Offspring Phenotypes: Dominant Dominant Dominant Recessive_ Recessive_ Recessive _

MENDEL CROSSED TRUE BREEDING PEA PLANTS. ONE PARENT HAD ROUND, GREEN SEEDS, AND THE OTHER HAD WRINKLED, YELLOW SEED. ALL F₁ PLANTS HAD SEEDS THAT WERE ROUND AND YELLOW. PREDICT THE RESULTS OF F₂ PLANTS, USING A PUNNET SQUARE OR TREE DIAGRAM. 1 2 WHAT ARE THE RESULTS AS A RATIO? WHAT ARE THE RESULTS AS FRACTIONS?