During a severe windstorm or an isolated island, some pollen and seeds from conifers are carried high into the air in a cloud of dust. In which of these situations would the dust cloud containing the seeds and pollen be considered an agent for gene flow?

Question

During a severe windstorm or an isolated island, some pollen and seeds from conifers are carried high into the air in a cloud of dust. In which of these situations would the dust cloud containing the seeds and pollen be considered an agent for gene flow?

The dust cloud is subjected to an extended period of ultraviolent radiation, causing a mutation in a gene of the conifer seeds.
The dust cloud settles, and a few of the conifer seeds return to the same environment
The dust cloud is subjected to electromagnetic radiation from the sun, causing the pollen to be unable to pollinate flowers
The dust cloud settles over a forecast on a distant, isolated island and pollinates some conifer trees in that forest

Answer 1

During a severe windstorm or an isolated island, some pollen and seeds from conifers are carried high into the air in a cloud of dust. In which of these situations would the dust cloud containing the seeds and pollen be considered an agent for gene flow?

The dust cloud settles over a forest on a distant, isolated island and pollinates some conifer trees in that forest.