question: In humans, the only haploid cells are what reproductive cells?
distractor3: uteral and sperm
distractor1: dna and egg
distractor2: sperm and dna
correct_answer: sperm and egg
support: The life cycle of a plant is very different from the life cycle of an animal. Humans are made entirely of diploid cells (cells with two sets of chromosomes, referred to as ''2n''). Our only cells that are haploid cells (cells with one set of chromosomes, ''n'') are sperm and egg cells. Plants, however, can live when they are are at the stage of having haploid cells or diploid cells. If a plant has a haploid chromosome number of 20, what is the diploid chromosome number? If the diploid chromosome number is 20, what is the haploid number?.