Read the given passage and answer the following question.\ Watson and Crick had immediately propose

Question

Read the given passage and answer the following question.\ Watson and Crick had immediately proposed a scheme for DNA replication while proposing the double helical structure of DNA. The experimental proof was given by two scientists who performed the following experiment using heavy nitrogen $\left({ }^{15} \mathrm{~N}ight)$ in an organism.\ Which organism was used first in the given experiment?\

Professor PC Thomas Classes · Answer

(b) : Semi-conservative mode of DNA replication was first experimentally proved in E. coli and subsequently in higher organisms, such as plant and human cells.