Quiz 7: Multifactorial Traits

Fraternal twins are no more closely related, in a genetic sense, than are any two siblings. Why might they be more alike in other ways?

How is phenylketonuria (PKU) multifactorial?

When levels of the air pollutant ozone exceed a certain level - such as in cities with a lot of automobile traffic on hot days - people with asthma are more sensitive to the environmental agents that trigger asthma than on other days. Devise an experiment to determine whether experiencing breathing difficulties in response to high atmospheric ozone levels is inherited.

When leptin was first discovered, headlines proclaimed that the finding would lead to effective anti-obesity pills. Why is this an oversimplification?

If you were to clone a human being, would the clone and the original have identical fingerprints? Explain your rationale.