Multiple choice The fungi used in the experiments to study genetics is Amanita muscaria Claviceps purpurea Rhizopus Neurospora crassa Reveal answer Fill a bubble to check yourself D Correct answer Explanation Neurospora crassa is a red bread mold. It is used as a model organism because it is convenient to grow and has a haploid life cycle that makes genetic analysis easier since recessive traits will come in the progenies.