Practice Questions

TLS Online TPP Program

#Question id: 15005

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?

#Unit 8. Inheritance Biology

Your plant species is not governed by Mendel's laws.
You need to test a different hypothesis, such as close linkage of these genes
You must have designed your crosses wrong, so you need to throw the experiment out.
You have discovered a new mechanism of sexual reproduction