Given a scientific passage and an answer, generate a question for the given answer.

[EX Q]: Passage: In sexually reproducing organisms, parents pass a copy of each type of chromosome to their offspring by producing gametes. When gametes are fertilized and form offspring, each has a unique combination of chromosomes and genes from both parents. The inherited gene combination determines the characteristics of the offspring. Answer: chromosome
[EX A]: In sexually reproducing organisms, parents pass a copy of each type of what to their offspring by producing gametes?

[EX Q]: Passage: Distillation is an effective method to separate mixtures comprised of two or more pure liquids. Distillation is a purification process where the components of a liquid mixture are vaporized and then condensed and isolated. In simple distillation, a mixture is heated and the most volatile component vaporizes at the lowest temperature. The vapor passes through a cooled tube (a condenser), where it condenses back into its liquid state. The condensate that is collected is called distillate. Answer: distillation
[EX A]: What is a purification process where the components of a liquid mixture are vaporized and then condensed and isolated?

[EX Q]: Passage: In vascular plants, the sporophyte generation is dominant. In seedless vascular plants such as ferns, the sporophyte releases spores from the undersides of leaves. The spores develop into tiny, separate gametophytes, from which the next generation of sporophyte plants grows. Answer: dominant
[EX A]:
In vascular plants, the sporophyte generation is what?