Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[EX Q]: A white dog has a puppy with white fur statement is an example of an inherited trait in a living thing.
[EX A]: Which statement is an example of an inherited trait in a living thing?

[EX Q]: An acorn growing into an adult tree will take the longest time to observe.
[EX A]: Which of these will take the LONGEST time to observe?

[EX Q]: The fetal period lasts approximately 30 weeks weeks.
[EX A]:
Approximately how many weeks does the fetal period last?