Oct 6, 2017
Midterm practice question. Which statistical test would you use? Post answers below.
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Midterm practice question. Which statistical test would you use? Post answers below.
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Bias
Describe the difference between sampling bias and measurement bias. Provide an example of each.
Practice Questions
What evidence do we have for the Origin of Life? How do each of those lines of evidence support the theory of how organic molecules originated on Earth?
Species of the Day
Question: Do we need to know each Species of the Day?
Answer: Yes, please make sure to focus on understanding how each Species of the Day exemplifies the concepts that we discussed in class that day.
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Interpreting Chi-Squared
You're cross two flower types and expect the offspring will be in a 1:2:1 ratio of dominant homozygotes, heterozygotes, and recessive homozygotes. You get a X^2 value of 5.89. Can you reject your null hypothesis? Post your answer in the comments section below.
What's the best test?
You want to test whether O. pumilio females select different color males with the same or equal frequencies. You test her choice with 4 different colors, red, blue, green, and yellow. What is the best test to use in this scenario? You can answer in the comments section below.
What's wrong with this figure?
This figure comes from a recent paper on enzyme activity in the journal PLOS One (Miotto et al, 2014). 1) Using what you've learned in class, explain how they could improve this figure. 2) What type(s) of data do they have?
Figure 3: Substrate specificity for GtCel12A.
Observed enzymatic activity was obtained on the following substrates: β-glucan, lichenan, CMC, PASC, Sigmacell, Avicel and filter paper.