Question

who accidentally discovered dna in the 1860s?friedrich miescheroswald averyjames watson and francis crickrosalind franklin

Explanation:

Friedrich Miescher discovered DNA in the 1860s. Oswald Avery's work was in the 1940s related to DNA's role as genetic material. James Watson and Francis Crick proposed the DNA double - helix structure in 1953. Rosalind Franklin's X - ray diffraction images were crucial for understanding DNA structure but not the discovery of DNA itself.

Answer:

Friedrich Miescher