Junior 4-H Rabbit Knowledge Practice Exam 2025 - Free Practice Questions and Study Guide

Rex rabbits can have upright fur due to a genetic mutation, causing the guard hairs to grow at a 90 degree angle from the body. This characteristic is also known as "rex fur." The other breeds listed, Himalayan, Netherland Dwarf, and Angora, typically do not have this genetic trait and therefore do not have upright fur. For example, Himalayan rabbits have a sleek and smooth coat, while Netherland Dwarfs and Angoras have a dense and fluffy coat that lays down against their body. Therefore, A is the only correct answer in this scenario.