Question

a group of students is walking in the park, and one of them takes a picture of a pollen grain that is being blown by the wind. what caption can the student use for this picture?
gene mutation in action
gene flow at work
genetic drift as it happens
natural selection in progress

Explanation:

• Gene mutation refers to a change in the DNA sequence of a gene. A pollen grain being blown by the wind is not related to a change in the DNA sequence.
• Gene flow is the transfer of genetic material from one population to another. Pollen grains (which carry plant genetic material) being blown by the wind can transfer genetic material from one plant population (e.g., one group of plants in a certain area of the park) to another (e.g., a different area of the park where other plants of the same species are located).
• Genetic drift is a change in the frequency of an existing gene variant in a population due to random sampling of organisms. Wind - blown pollen is not about random sampling of organisms in the sense of genetic drift.
• Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring. The image of a pollen grain being blown by the wind is not directly related to the differential survival and reproduction of organisms based on traits.

Answer:

gene flow at work