Radioactively-labelled d-nucleotides are introduced into a cell. In which cell structures will the radioactivity first become concentrated?

Step-by-step solution

Here, 2 and 3 are nucleus and mitochondria which contain DNA that made of nucleotide. Rest of the labelled organelles do not contain nucleotides/DNA where 1 is rough endoplasmic reticulum and 4 is golgi complex.