The photographed chromosomes of a cell, arranged by length, form a:

1. Chromosomes can be removed from a cell in mitosis and spread out on a slide. 2. They are then rearranged for comparison. 3. An arrangement like this, artificially ordered according to length, is called a karyotype. 4. Genotype and phenotype describe genes and traits rather than a picture of chromosomes. _Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 10 'Cell Reproduction', sections 10.1-10.5_