What are two typical testcross ratios?

A) 1:1 and 1:1:1:1 B) 3:1 and 1:1:1:1 C) 1:1 and 9:3:3:1 D) 3:1 and 9:3:3:1


Answer: A

Biology & Microbiology

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Which of the following choices shows these steps in the correct order?

The steps of DNA fingerprinting are shown below. 1. Isolate DNA from samples 2. Label DNA with fluorescent marker 3. PCR using primers that flank STRs 4. Detection of fluorescent fragments 5. Gel electrophoresis A. 1 - 2 - 3 - 4 - 5. B. 1 - 2 - 3 - 5 - 4. C. 1 - 5 - 3 - 2 - 4. D. 1 - 3 - 2 - 5 - 4. E. 3 - 1 - 2 - 5 - 4.

Biology & Microbiology

The current class Reptilia is:

a. monophyletic. b. paraphyletic. c. polyphyletic. d. heterophyletic. e. phenetic

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Describe the process of atherosclerosis and discuss two possible complications for the affected

individual. What will be an ideal response?

Biology & Microbiology

Which of the following is a merit of using the probit/logit model over the linear probability model for a limited dependent variable?

A. By construction predictions from the model will fall within 0 and 1. B. The probit/logit model can be estimated using similar OLS. C. The marginal effects are easier to calculate. D. The probit/logit model is better at finding causal estimates.

Biology & Microbiology