For this analysis the critical value has risen to 7.815, so again our x
2
value is well below the critical value, and Mendel's theory is supported. In the following procedures, you will test to see if two traits in corn obey Mendel's Law of Independent Assortment. One trait - kernel color - you've already analyzed. The other trait is something you may have noticed - kernel shape. Some kemels are wrinkled and some are round. This is another trait that appears to follow Mendel's first law. Wrinkled kemels have genotype bb and round ones could be either BB or Bb. These corn cobs were produced by double heterozygous corn plants AaBb, with genotype purple/round. 1. Return to your F
2
cob. As before, choose a starting kemel on the fat end of the cob. Work your way down the cob tallying the number of each phenotype in the row. Possible phenotypes are purple/round, purple/wrinkled, yellow/round and yellow/wrinkled. Tally at least 100 kernels total. 2. When you've finished collecting data, place your results into table 7.4 and then complete that goodness of fit table. 3. Calculate x
2
from table 7.4. x
2
= 4. The critical value is 7.815. Do your data support Mendel's theory or not? Explain in detail in the space provided.
