Question 8 (6 marks): A botanist has a pea plant with an unknown genotype; the pea plant has a green pod colour and roun

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Question 8 6 Marks A Botanist Has A Pea Plant With An Unknown Genotype The Pea Plant Has A Green Pod Colour And Roun 1 (47.49 KiB) Viewed 146 times

Question 8 (6 marks): A botanist has a pea plant with an unknown genotype; the pea plant has a green pod colour and round seed shape. Green pod colour (G) and round seed shape (R) are both dominant over yellow pod colour (g) and wrinkled pea shape (r). Therefore, the botanist's plant must be one of the following four genotypes: GGRR, GgRR, GGRr, or GgRr. a) Perform a test cross with all the possible genotypes given in the question and give the expected phenotype ratios for each cross. (Hint: make sure you understand what a "test cross" is.) b) When the botanist performs a test cross with the unknown pea plant, he determines that phenotype ratio of the offspring is 1 round, green: 1 wrinkly, green. Based on these findings, what was the genotype of the botanist's round seed, green pod parent plant.