When constructing a confidence interval, which of the following will reduce the size of the margin of error? I. Increasing the sample size. II. Decreasing the value of the point estimator. III. Increasing the confidence level from 95% to 99%.

An E. coli cell is isolated with mutations that disrupt methylation marks from being installed on the parental DNA prior to genome replication, leading to a loss of hemimethylated DNA following replication. These mutations will most affect which pathway in the cell:

Suppose the weight of an airline passenger has a mean of 150 lbs. and a standard deviation of 25 lbs. What is the probability the combined weight of 100 passengers will exceed the maximum allowable weight of 15,500 lbs?

A PCR is performed on the following template using the two primers as indicated below:       The resulting PCR product is:

The weight of female goats is Normally-distributed with a mean of 145 lbs. and a standard deviation of 9 lbs. Now you take a random sample of 8 goats and find that their sample mean is 139 lbs. with a sample standard deviation of 11 lbs. What is the probability that the sample mean is between 139 and 145 lbs?

A primer (red) is annealed to a DNA template (black) as shown below:       The nucleobase of the next nucleotide that DNA polymerase will add to the primer is:

The following base can become damaged and form dimers in response to UV light.    

Tyrosine recombinases and serine recombinases both perform sequence-specific recombination that proceeds through a Holliday Junction.

A laboratory blood test has 97% sensitivity, that is, 97% effective in detecting a certain disease when it is in fact present. However, the test also yields a “false positive” result for 1% of the healthy persons tested. If 2% of the population actually has the disease, what is the probability that a person has the disease given that the test result is positive?

When a couple has a baby, the probability that they have a daughter is 0.5. The probability that they have a baby that is both female and has brown eyes is 0.28. Given that a couple has a daughter, what is the probability their daughter has brown eyes?