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ITBS Level 12 Grade 6 Science 3
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A certain plant can have either red or yellow flowers. The flower color is controlled by a single gene, where the red color is dominant.    
 

ITBS Level 12 Grade 6 Science 3
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2 Questions

1. Suppose that a heterozygous red flower is crossed with a yellow flower. Which of the following Punnett squares accurately shows the possible results?
2. A botanist finds a different plant that also has red and yellow flowers and decides to breed them to find whether the red or yellow color is dominant. He breeds two red flowers and gets a mixture of red and yellow offspring. He breeds two yellow flowers and also gets a mixture of red and yellow offspring. Which of the following is the best explanation for this result?

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