21. As a result, chromosome 19 in a karyotype displays very few dark bands. 22. The technique of determining the karyotype is usually called " karyotyping ". 23. The karyotype of humans includes only 46 chromosomes. 24. Evidence for monophyly of Alooideae is based on distinctive karyotype and characteristic leaf morphology. 25. A karyotype rearrangement of individual chromosomes takes place when polysomy in plants in observed. 26. This has led to differences detectable by karyotype , allozymes, and DNA sequencing. 27. Sequences of karyotypes replacing one another in a tumor were observed as it progressed. 28. The standard diagnostic method is the analysis of the chromosomes'karyotype on lymphocytes. 29. This is approximately 1000-fold greater resolution than karyotypes obtained from conventional cytogenetics. 30. Karyotype shows that it has 52 chromosomes ( haploid, n = 26 ).