The branch of science that really lets us understand organisms better.
The answer that best fits the blank is RENDERS CILIA IMMOBILE. What happens when the left-right asymmetries in humans are reversed would lead to a genetic condition that renders cilia immobile. This is based on the role of the ciliated cells in the body that has an important impact in one's biological development.
Answer:
It is possible to produce an offspring from a zebra mating with a donkey. Indeed, in Florence, Italy, a male zebra mated with a female donkey and produced a striped mule.