Kits for screening embryos for chromosomal abnormalities for medical purposes or medical research purposes; kits for analysing chromosomal content of embryos for medical purposes or medical research purposes; kits for screening embryos for suitability for in vitro fertilization for medical purposes or medical research purposes; chromosome testing kits for medical purposes or medical research purposes; testing kits utilizing a DNA array or microarray for chromosome analysis for medical purposes or medical research purposes; chromosome testing kits for use in in vitro fertilization (IVF) clinics or medical research laboratories; kits for testing chromosome content for use in assisted reproductive technologies for medical purposes or medical research purposes