The Leaf Color of a Certain Plant Is Controlled by One

question 10

Multiple Choice

The leaf color of a certain plant is controlled by one gene.For that gene,the allele G = orange and g = green.You have a plant with orange leaves but do not know whether that plant's genotype is GG or Gg.Which of the following would help you determine the plant's genotype?

• A) cross the plant to another plant with orange leaves
• B) cross the plant to a plant with green leaves
• C) cross two true-breeding, orange-leaved plants to each other and then cross one of their offspring to the plant with the unknown genotype
• D) change the environment in which the plant grows to find the conditions that cause the leaves to produce the orange color

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