a human body cell contains 46 chromosomes
chromosome_21 is human_chromosome. chromosome_5 is human_chromosome. chromosome_21 is not human_chromosome. chromosome_22 is not human_chromosome. chromosome_20 is human_chromosome. chromosome_17 is human_chromosome. chromosome_19 is human_chromosome. chromosome_20 is not human_chromosome. human_chromosome is chromosome. chromosome_22 is human_chromosome.