Semiconservative nature of replication of eukaryotic chromosome was first demonstrated by _______________

• A. Walter Flemming on root tip cells of Vicia faba
• B. J. Herbert Taylor, Philip Wood and Walter Hughes on root tip cells of Vicia faba
• C. Walter Flemming on root tip cells of Phaseolus vulgaris
• D. J. Herbert Taylor, Philip Wood and Walter Hughes on root tip cells of Phaseolus vulgaris