Please explain, using the terminology we used in lecture, how a mutation causing loss of function in hypocretin receptors could disrupt normal sleep/wake cycles and be responsible for narcolepsy. Be sure to focus on molecular mechanisms and their relevance to the other sleep systems we discussed in class.

A testcross involves an individual with the dominant phenotype but unknown genotype being crossed with an individual that has a(n)________ genotype.

Approximately how many base pairs are still improperly matched in the bacterial genome after the DNA polymerase proofreads the DNA strand?

In what kind of classic Mendelian cross would you expect to find a ratio of 9:3:3:1 among the offspring?

The most likely time refers to the average time taken when an activity is repeated many times under the same conditions.

A project has an expected duration of 40 days and a standard deviation of 5 days. What is the Z-score for completing the project within 47 days?

A project has an expected duration of 84 days and a standard deviation of 6 days. What is the probability of completing the project within 90 days?

An activity has an optimistic duration of 3 days and a pessimistic duration of 9 days.What is the standard deviation of the activity’s duration?

A project has an expected duration of 60 days with a standard deviation of 5 days. What is the probability of completing the project within 55 days?

The optimistic duration represents the shortest possible time to complete an activity if everything goes perfectly.