You identify a previously unidentified plant species and decide to study its genetics. You establish true breeding strains for leaf shape (longer than wide vs equal length and width) and flower color (white vs. yellow). When you perform a dihybrid cross with these strains, you find that your results are very different than those predicted by a 9:3:3:1 ratio. You calculate a chi square and get a p value of less than 0.0001. Which of the following statements is most accurate based on this observation?

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#Question id: 1744

#Unit 4. Cell Communication and Cell Signaling

Which of the following events occurs earliest in T-cell signaling?

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#Question id: 1656

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is TRUE of IgM?

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#Question id: 5116

#Unit 5. Developmental Biology

Which of the following reflects Weismann’s model of development?

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#Question id: 29467

#Unit 6. System Physiology – Plant

columella of the root cap cells represent statocytes, or gravity-sensing cells, this can be explained by

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#Question id: 8697

#Unit 9. Diversity of Life Forms

Use the figure to answer the following question.

Which extinct species should be the best candidate to serve as the outgroup for the clade whose common ancestor occurs at position 2 in the figure?