eng Oriental Scientific Publishing Company Biomedical and Pharmacology Journal 0974-6242 2015-04-26 5 2 371 374 2555 article U.K. Sinha 1 Rachna Prasad 2 Faculty of Science, Department of Botany, Patna University, Patna, India. Department of Botany, Magadh Mahila College, P.U., India. The meiotic details of Catharanthus roseus revealed the occurrence of the phenomenon of cytomixis in the early prophase. Diakinesis shows the presence of rod and ring bivalents. Metaphase has regular chromosomal orientation at the equatorial plate. Anaphase I has equal separation. The terminalization coefficient at Metaphase I reaches to unity. All this renders it to be ecologically well – established and certainly not endangered. Hence, its worldwide ongoing biochemical assay is worthwhile for the production of quality medicines to combat dreadful diseases like cancer. https://biomedpharmajournal.org/vol5no2/meiotic-study-in-catharanthus-roseus/ Catharanthus roseus cytomixis Germplasm